* feat: add sync functionality for OAuth providers
- Implemented `check_sync_enabled` method to verify if sync is enabled for Google, GitHub, GitLab, and Gitea.
- Added `sync_user_data` method to update user details, including first name, last name, display name, and avatar.
- Updated configuration variables to include sync options for each provider.
- Integrated sync check into the login/signup process.
* feat: add sync toggle for OAuth providers in configuration forms
* fix: remove default value for sync options in OAuth configuration forms
* chore: delete old avatar and upload a new one
* chore: update class method
* chore: add email nullable
* refactor: streamline sync check for multiple providers and improve avatar deletion logic
* fix: ensure ENABLE_SYNC configurations default to "0" for Gitea, Github, Gitlab, and Google forms
* fix: simplify toggle switch value handling in ControllerSwitch component
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Co-authored-by: b-saikrishnakanth <bsaikrishnakanth97@gmail.com>
* feat: add avatar download and upload functionality in authentication adapter
- Implemented `download_and_upload_avatar` method to fetch and store user avatars from OAuth providers.
- Enhanced user data saving process to include avatar handling.
- Updated `S3Storage` class with a new `upload_file` method for direct file uploads to S3.
* feat: enhance avatar download functionality with size limit checks
- Added checks for content length before downloading avatar images to ensure they do not exceed the maximum allowed size.
- Implemented chunked downloading of avatar images to handle large files efficiently.
- Updated the upload process to return None if the upload fails, improving error handling.
* feat: improve avatar filename generation with content type handling
- Refactored avatar download logic to determine file extension based on the content type from the response headers.
- Removed redundant code for extension mapping, ensuring a cleaner implementation.
- Enhanced error handling by returning None for unsupported content types.
* fix: remove authorization header for avatar download
- Updated the avatar download logic to remove the Authorization header when token data is not present, ensuring compatibility with scenarios where authentication is not required.
* feat: add method for avatar download headers
- Introduced `get_avatar_download_headers` method to centralize header management for avatar downloads.
- Updated `download_and_upload_avatar` method to utilize the new header method, improving code clarity and maintainability.
