docs(v1/v2/v3): point Demo Application at InertiaCore variant

All three versioned demo-application pages described the upstream
Laravel Ping CRM. Swap to the InertiaCore variants:

- Ping CRM: demo.inertiacore.net, github.com/inertiacore/pingcrm,
  "ASP.NET Core and Vue". Also link the React and Svelte InertiaCore
  forks (inertiacore/pingcrm-react, inertiacore/pingcrm-svelte).
- v3 additionally leads with the Kitchen Sink v3 demo at
  demo-v3.inertiacore.net (source at github.com/inertiacore/demo-v3)
  — the richer v3 reference app that covers forms, navigation, data
  loading, prefetching, and more — then mentions Ping CRM after.
- Collapse per-version third-party tables/lists into a single link
  back to the official Inertia.js demo page to avoid maintaining a
  community port list in this fork.

v1/v2 keep their V1EOLWarning / V2UpgradeWarning snippet imports at
the top of the page.

Author: adrum

v1/getting-started/demo-application.mdx

@@ -6,20 +6,14 @@ import V1EOLWarning from "/snippets/v1-eol-warning.mdx";
 
 <V1EOLWarning />
 
-We've setup a demo app for Inertia.js called [Ping CRM](https://demo.inertiajs.com). This application is built using Laravel and Vue. You can find the source code on [GitHub](https://github.com/inertiajs/pingcrm).
+We've set up a demo app for InertiaCore called [Ping CRM](https://demo.inertiacore.net). This application is built using ASP.NET Core and Vue. You can find the source code on [GitHub](https://github.com/inertiacore/pingcrm).
 
 The Ping CRM demo is hosted on Heroku and the database is reset every hour. Please be respectful when editing data.
 
-[![Ping CRM](/images/pingcrm.png)](https://demo.inertiajs.com)In addition to the Vue version of Ping CRM, we also maintain a Svelte version of the application, which you can find [on GitHub](https://github.com/inertiajs/pingcrm-svelte).
+[![Ping CRM with Vue](/images/pingcrm.png)](https://demo.inertiacore.net)
 
-## Third Party
+In addition to the Vue version of Ping CRM, we also maintain [React](https://github.com/inertiacore/pingcrm-react) and [Svelte](https://github.com/inertiacore/pingcrm-svelte) versions of the application on GitHub.
 
-Beyond our official demo app, Ping CRM has also been translated into numerous different languages and frameworks.
+## Third Party
 
-- [Ruby on Rails/Vue](https://github.com/ledermann/pingcrm/) by Georg Ledermann
-- [Laravel/React](https://github.com/Landish/pingcrm-react) by Lado Lomidze
-- [Laravel/Svelte](https://github.com/zgabievi/pingcrm-svelte) by Zura Gabievi
-- [Laravel/Mithril.js](https://github.com/tbreuss/pingcrm-mithril) by Thomas Breuss
-- [Yii 2/Vue](https://github.com/tbreuss/pingcrm-yii2) by Thomas Breuss
-- [Symfony/Vue](https://github.com/aleksblendwerk/pingcrm-symfony) by Aleks Seltenreich
-- [Clojure/React](https://github.com/prestancedesign/pingcrm-clojure) by Michaël Salihi
+Beyond our InertiaCore demo app, Ping CRM has also been translated into numerous different languages and frameworks. The full list is available on the [official Inertia.js demo page](https://inertiajs.com/demo-application#third-party).

v2/getting-started/demo-application.mdx

@@ -6,28 +6,14 @@ import V2UpgradeWarning from "/snippets/v2-upgrade-warning.mdx";
 
 <V2UpgradeWarning />
 
-We've setup a demo app for Inertia.js called [Ping CRM](https://demo.inertiajs.com). This application is built using Laravel and Vue. You can find the source code on [GitHub](https://github.com/inertiajs/pingcrm).
+We've set up a demo app for InertiaCore called [Ping CRM](https://demo.inertiacore.net). This application is built using ASP.NET Core and Vue. You can find the source code on [GitHub](https://github.com/inertiacore/pingcrm).
 
 The Ping CRM demo is hosted on Heroku and the database is reset every hour. Please be respectful when editing data.
 
-<Frame>
-[![Ping CRM](/images/pingcrm.png)](https://demo.inertiajs.com)
-</Frame>
+[![Ping CRM with Vue](/images/pingcrm.png)](https://demo.inertiacore.net)
 
-In addition to the Vue version of Ping CRM, we also maintain a Svelte version of the application, which you can find [on GitHub](https://github.com/inertiajs/pingcrm-svelte).
+In addition to the Vue version of Ping CRM, we also maintain [React](https://github.com/inertiacore/pingcrm-react) and [Svelte](https://github.com/inertiacore/pingcrm-svelte) versions of the application on GitHub.
 
 ## Third Party
 
-Beyond our official demo app, Ping CRM has also been translated into numerous different languages and frameworks.
-
-| Platform                                 | Author               |
-|:-------------------------------------|:---------------------|
-| [Clojure/React](https://github.com/prestancedesign/pingcrm-clojure) | Michaël Salihi       |
-| [Echo/Vue](https://github.com/kohkimakimoto/pingcrm-echo)          | Kohki Makimoto       |
-| [Grails/Vue](https://github.com/matrei/pingcrm-grails)              | Mattias Reichel      |
-| [Laravel/React](https://github.com/Landish/pingcrm-react)            | Lado Lomidze        |
-| [Laravel/Mithril.js](https://github.com/tbreuss/pingcrm-mithril)    | Thomas Breuss        |
-| [Laravel/Svelte](https://github.com/zgabievi/pingcrm-svelte)        | Zura Gabievi        |
-| [Ruby on Rails/Vue](https://github.com/ledermann/pingcrm/)          | Georg Ledermann      |
-| [Symfony/Vue](https://github.com/aleksblendwerk/pingcrm-symfony)    | Aleks Seltenreich    |
-| [Yii 2/Vue](https://github.com/tbreuss/pingcrm-yii2)                | Thomas Breuss        |
+Beyond our InertiaCore demo app, Ping CRM has also been translated into numerous different languages and frameworks. The full list is available on the [official Inertia.js demo page](https://inertiajs.com/demo-application#third-party).

v3/getting-started/demo-application.mdx

@@ -2,6 +2,18 @@
 title: Demo Application
 ---
 
-The official Inertia.js v3 demo application is a comprehensive [Kitchen Sink](https://demo-v3.inertiajs.com) app built with Laravel and Vue. It includes a mini CRM with contacts, organizations, and notes, along with dedicated feature showcase pages covering forms, navigation, data loading, prefetching, state management, layouts, events, error handling, and more. You may find the source code on [GitHub](https://github.com/inertiajs/demo-v3).
+The official InertiaCore v3 demo application is a comprehensive [Kitchen Sink](https://demo-v3.inertiacore.net) app built with ASP.NET Core and Vue. It includes a mini CRM with contacts, organizations, and notes, along with dedicated feature showcase pages covering forms, navigation, data loading, prefetching, state management, layouts, events, error handling, and more. You may find the source code on [GitHub](https://github.com/inertiacore/demo-v3).
 
-The demo is hosted on [Laravel Cloud](https://cloud.laravel.com) and the database is reset every midnight. Please be respectful when editing data.
+The demo is hosted at [demo-v3.inertiacore.net](https://demo-v3.inertiacore.net) and the database is reset every midnight. Please be respectful when editing data.
+
+## Ping CRM
+
+We also maintain [Ping CRM](https://demo.inertiacore.net), a smaller reference app built with ASP.NET Core and Vue. You can find the source code on [GitHub](https://github.com/inertiacore/pingcrm).
+
+[![Ping CRM with Vue](/images/pingcrm.png)](https://demo.inertiacore.net)
+
+In addition to the Vue version of Ping CRM, we also maintain [React](https://github.com/inertiacore/pingcrm-react) and [Svelte](https://github.com/inertiacore/pingcrm-svelte) versions of the application on GitHub.
+
+## Third Party
+
+Beyond our InertiaCore demo apps, Ping CRM has also been translated into numerous different languages and frameworks. The full list is available on the [official Inertia.js demo page](https://inertiajs.com/demo-application#third-party).