fix: update mailhog.warden.test URLs to webmail.warden.test

Warden moved from Mailhog to Mailpit in v0.15.0. Update all
remaining references to use the current webmail.warden.test URL.
Also fix rST link syntax in magento2.md.

Author: lbajsarowicz

environments/magento2.md

@@ -234,7 +234,7 @@ In addition to the below manual process, there is a `Github Template available f
      :::
 
      :::{note}
-     Use of 2FA is mandatory on Magento ``2.4.x`` and setup of 2FA should be skipped when installing ``2.3.x`` or earlier. Where 2FA is setup manually via UI upon login rather than using the CLI commands above, the 2FA configuration email may be retrieved from `the Mailhog service <https://mailhog.warden.test/>`_.
+     Use of 2FA is mandatory on Magento ``2.4.x`` and setup of 2FA should be skipped when installing ``2.3.x`` or earlier. Where 2FA is setup manually via UI upon login rather than using the CLI commands above, the 2FA configuration email may be retrieved from [the webmail service](https://webmail.warden.test/).
      :::
 
 11. Launch the application in your browser:

environments/types.md

@@ -96,7 +96,7 @@ Files are currently mounted using a delegated mount on macOS and natively on Lin
 
 ## Commonalities
 
-In addition to the above, each environment type (with the exception of the `local` type) come with PHP setup to use `mhsendmail` to ensure outbound email does not inadvertently leave your network and to support simpler testing of email functionality. Mailhog may be accessed by navigating to [https://mailhog.warden.test/](https://mailhog.warden.test/) in a browser.
+In addition to the above, each environment type (with the exception of the `local` type) come with PHP setup to use `mhsendmail` to ensure outbound email does not inadvertently leave your network and to support simpler testing of email functionality. The webmail interface may be accessed by navigating to [https://webmail.warden.test/](https://webmail.warden.test/) in a browser.
 
 Where PHP is specified in the above list, there should be two `fpm` containers, `php-fpm` and `php-debug` in order to provide Xdebug support. Use of Xdebug is enabled by setting the `XDEBUG_SESSION` cookie in your browser to direct the request to the `php-debug` container. Shell sessions opened in the debug container via `warden debug` will also connect PHP process for commands on the CLI to Xdebug.
 

services.md

@@ -5,7 +5,7 @@ After running `warden svc up` for the first time following installation, the fol
 * [https://traefik.warden.test/](https://traefik.warden.test/)
 * [https://portainer.warden.test/](https://portainer.warden.test/)
 * [https://dnsmasq.warden.test/](https://dnsmasq.warden.test/)
-* [https://mailhog.warden.test/](https://mailhog.warden.test/)
+* [https://webmail.warden.test/](https://webmail.warden.test/)
 
 ## Customizable Settings