AIP-68 | Migrate plugin menu_items to FastAPI and new UI

[bbovenzi]

• Rename appbuilder_menu_items to menu_items
• Add a GET /plugins endpoint to FastAPI that looks up the menu items and sends them as an array to the UI
• Have the UI consume the GET /plugins endpoint and render the menu items links just like how the DocsButton component works: https://github.com/apache/airflow/blob/main/airflow/ui/src/layouts/Nav/DocsButton.tsx

[Brijeshthummar02]

@bbovenzi i can fix this, assign me the task.

[bbovenzi]

@Brijeshthummar02 assigned! Let me know if you need help with any part here.

[Brijeshthummar02]

Guide me for 2nd and 3rd point,can you clarify in brief with the path.

[bbovenzi]

1. just rename the plugin menu_items property
2. create a new GET /plugins endpoint in the new FastAPI that will return a list of all plugin menu_items. You can the PRs tagged here to see how to build endpoints for FastAPI: AIP-84 Migrate public endpoints from api_connexion to the new Rest API #42370
3. Once there is an endpoint in FastAPI, we autogenerate all the types and queries. Then you call the function, something like usePluginServiceGetPlugins(), inside the Nav component to render the MenuItems. Probably reusing the code from the DocsButton component.

[Brijeshthummar02]

can you provide the path of file for the first point.

[bbovenzi]

Actually, let's focus on point 2. Renaming can be handled later.

[bbovenzi]

Actually we have the menu items provided in #43125.