docs: fix typos and broken frontmatter descriptions (#119)

Co-authored-by: mintlify[bot] <109931778+mintlify[bot]@users.noreply.github.com>

Author: mintlify[bot]

fundamentals/authentication/guides/authentication-best-practices.mdx

@@ -75,7 +75,7 @@ If you need to store your access tokens in a database, please keep the following
 
 ## Password management tools
 
-Password management tools such as 1password or Last Pass can be helpful in keeping your keys and tokens in secure place. You might want to avoid sharing these in side of a shared team password management tool.
+Password management tools such as 1password or Last Pass can be helpful in keeping your keys and tokens in a secure place. You might want to avoid sharing these inside of a shared team password management tool.
 
 ## Web storage & cookies
 

xdks/python/quickstart.mdx

@@ -2,7 +2,7 @@
 title: Quickstart
 sidebarTitle: Quickstart
 
-description: This example showcases how to quickly search for Posts using the XDK using Bearer Token authentication. ## Step 1: Install the SDK ```bash pip install xdk ``...
+description: This example showcases how to quickly search for Posts using the XDK using Bearer Token authentication.
 ---
 This example showcases how to quickly search for Posts using the XDK using Bearer Token authentication.
 ## Step 1: Install the SDK

xdks/typescript/install.mdx

@@ -2,7 +2,7 @@
 title: "Installation"
 sidebarTitle: "Installation"
 
-description: Get started with the TypeScript SDK for X API in your project. ## Install  <CodeGroup>  ```bash npm theme={null} npm install @xdevplatform/xdk ```  ```bash y...
+description: Get started with the TypeScript SDK for X API in your project.
 ---
 
 Get started with the TypeScript SDK for X API in your project.