frontend: PluginSettings: Refactor local storage and plugin data

[vyncent-t]

original - #2671

Fixes Issue #2595

Description

• This PR shrinks the saved JSON data from the plugins information and saves only the name and isEnabled status in local storage. This ensures plugin settings persist when closing and reopening the app.
• This PR introduces the usePlugins hook into lib/k8s/api/v2
• It also handles backward compatibility, allowing previously saved settings to be used in this new format.
• Additionally, it no longer takes old information from the JSON in local storage. Instead, it retrieves the necessary plugin data from the backend when the main Plugin component is called.

Changes

1. Introduces usePlugins hook: Hook used to fetch the plugins from the backend and return the plugins with their settings
2. Reduced Storage Data: Only stores essential plugin info (name and isEnabled) in local storage.
3. Backward Compatibility: Converts old-format data into the new structure on first run.
4. Data Source Shift: Eliminates use of outdated local storage JSON data, and instead fetches plugin details from the backend when the Plugin component mounts.

How to Test

1. Setup:
   • Pull this branch and run the application.
2. Verify Plugin Settings:
   • Open headlamp in app mode
   • Navigate to the settings page then to plugins settings tab
   • Check local storage item headlampPluginSettings
3. Check Backward Compatibility:
   • Start with an older version of the app or start from main.
   • Navigate to the settings page then to plugins settings tab
   • Check local storage item headlampPluginSettings
   • Switch to this branch and run the app.
   • Confirm that previously stored plugin settings are recognized and converted correctly.
4. Backend Data:
   • Verify that after loading, the plugin details (other than name and isEnabled) are fetched from the backend and displayed correctly in the UI.
   • Switch plugins off and on and observe the changes in local storage and in app

Notes

• If you have preexisting local storage data, this PR will convert it automatically. You can reset the local storage if you return to main and go to the same plugin settings paage.
• Double-check the logs to ensure no errors appear during the migration from old data to new data.

[k8s-ci-robot]

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[vyncent-t]

e2e tests are passing, none of the log changes cause it to fail. going to drop e2e test changes here and rebase when #3144 is merged

[illume]

I'm against moving the logic around into more places. It makes it more difficult to hunt for things.

Additionally, there are a bunch of separate changes all together in one commit.

[vyncent-t]

I'm against moving the logic around into more places. It makes it more difficult to hunt for things.

Additionally, there are a bunch of separate changes all together in one commit.

I have another PR that requires these changes so that the plugin info is compatible with plugins settings headlamp-k8s/plugins#117