Add documentation for using Milkdown with various frameworks

- Created a new document for using components in Milkdown.
- Added a guide for using plugins in Milkdown, including toggling plugins programmatically and listing official plugins.
- Introduced a recipe for integrating Milkdown with Angular, including installation steps and component creation.
- Added a recipe for using Milkdown with Next.js, detailing installation and component setup.
- Created a guide for integrating Milkdown with NuxtJS, including installation and component creation.
- Added a comprehensive guide for using Milkdown with React, covering both Crepe and core Milkdown usage.
- Introduced a recipe for SolidJS integration with Milkdown, including installation and component creation.
- Added a guide for using Milkdown with Svelte, detailing installation and component setup.
- Created a comprehensive guide for integrating Milkdown with Vue, covering both Crepe and core Milkdown usage.
- Added a recipe for using Milkdown with Vue2, including installation and component creation.

milkdown-docs/guide/prosemirror-api.md

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+# Prosemirror API
+
+Milkdown is built on top of prosemirror. Which means you can use the entire prosemirror API in Milkdown.
+To access the prosemirror API, you can use the `@milkdown/prose` package. It re-exports all of the prosemirror API.
+Using this package you can make sure that you are using the same version of prosemirror as Milkdown.
+
+## Installation
+
+To access a certain API in the `prosemirror-x` package, you need to import them from `@milkdown/kit/prose/x`.
+
+For example:
+
+```ts
+// Originally in prosemirror-state
+import { EditorState } from "@milkdown/kit/prose/state";
+// Originally in prosemirror-view
+import { EditorView } from "@milkdown/kit/prose/view";
+```
+
+## List of packages
+
+The following is a list of all the re-exported prosemirror API.
+
+- `@milkdown/kit/prose/changeset`
+- `@milkdown/kit/prose/commands`
+- `@milkdown/kit/prose/dropcursor`
+- `@milkdown/kit/prose/gapcursor`
+- `@milkdown/kit/prose/history`
+- `@milkdown/kit/prose/inputrules`
+- `@milkdown/kit/prose/keymap`
+- `@milkdown/kit/prose/model`
+- `@milkdown/kit/prose/schema-list`
+- `@milkdown/kit/prose/state`
+- `@milkdown/kit/prose/transform`
+- `@milkdown/kit/prose/view`
+- `@milkdown/kit/prose/tables`
+
+You can find the documentation of the prosemirror API [here](https://prosemirror.net/docs/ref/).