[Feature Request] SFM: support reloading local config file and sync with local file

[duskmoon314]

Currently, SFM supports loading local config files into the app. However, the loaded config profile changes are not written back to local files, and changes to local files don't affect the app.

This PR asks for two features:

1. Reloading:
   • SFM can reload local config files. We may reload on click or automatically.
   • Expected behavior:
     1. The user loads a config file into SFM.
     2. The user edits the config file through editors like vscode.
     3. The user clicks a button, and SFM reloads the config file.
2. Sync with local files:
   • SFM can write the configuration back to the local files.
   • Expected behavior:
     1. The user loads a config file into SFM.
     2. The user edits the config in SFM.
     3. SFM writes the config back to the local files. The user can see the changes in editors like vscode.

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