Feat: add initial Google Drive connector support (#11147)

### What problem does this PR solve?

This feature is primarily ported from the
[Onyx](https://github.com/onyx-dot-app/onyx) project with necessary
modifications. Thanks for such a brilliant project.

Minor: consistently use `google_drive` rather than `google_driver`.

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src="https://github.com/user-attachments/assets/6f64e70e-881e-42c7-b45f-809d3e0024a4"
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src="https://github.com/user-attachments/assets/dfa7d1ef-819a-4a82-8c52-0999f48ed4a6"
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src="https://github.com/user-attachments/assets/39e792fb-9fbe-4f3d-9b3c-b2265186bc22"
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src="https://github.com/user-attachments/assets/27d70e96-d9c0-42d9-8c89-276919b6d61d"
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### Type of change

- [x] New Feature (non-breaking change which adds functionality)

api/apps/connector_app.py

@@ -104,4 +104,4 @@ def rebuild(connector_id):
 def rm_connector(connector_id):
     ConnectorService.resume(connector_id, TaskStatus.CANCEL)
     ConnectorService.delete_by_id(connector_id)
-    return get_json_result(data=True)
+    return get_json_result(data=True)