chore: docs stubbing

docs/live-preview/frontend.mdx

@@ -0,0 +1,13 @@
+---
+title: Implementing Live Preview in your app
+label: Frontend Implementation
+order: 20
+desc: NEED TO WRITE 
+keywords: NEED TO WRITE
+---
+
+- Talk about in detail how it works on the frontend
+- How you should write your frontend to be "safe" and not break if there is no data filled in a required field, etc.
+- Your UI should be reactive to new props 
+- Loading states
+- Etc.

docs/live-preview/overview.mdx

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+---
+title: Live Preview
+label: Overview
+order: 10
+desc: NEED TO WRITE 
+keywords: NEED TO WRITE
+---
+
+TODO: write docs here
+- Show screenshot of the usage
+- Talk about how it works at a high level
+- Talk about the property on `collectionConfig.admin`
+- Talk about the React hook, and the subsequent package that it relies on which can be used for other frameworks