- Implemented Google SSO management in the school settings, allowing schools to configure their own OAuth2 credentials.
- Added fields for Client ID and Client Secret in the edit school modal and school detail page.
- Introduced functionality to save and clear Google SSO settings via API.
- Updated UI to display current SSO status and instructions for setting up Google OAuth2.
- Created a new database migration to add `google_client_id` and `google_client_secret` columns to the schools table.
- Updated the button for adding a new school year to have an ID for easier access.
- Changed the way IS_SUPERADMIN is defined to use JSON for better compatibility.
- Added event bindings for canceling and saving edits for schools in the JavaScript code.
- Introduced a new document for Google SSO instructions.
