Fixed: Improved monitor record handling by filling missing monitor IDs from the related site ID and preventing unintended site ID updates when partial monitor data is received.

Added: Added sync status tooltips that show the last synchronization time for each site.

Added: Introduced an outdated data indicator (red badge) for sites that haven't synced in over 24 hours.

Updated: Enhanced the reconnect actions to better handle sites with synchronization errors.

Updated: Made the "Add" button label visible in the header controls for clearer navigation.

Updated: Refined the site opening overlay styling and layout for a cleaner, more consistent experience.

Updated: Updated the theme installation header buttons with improved styling and larger interaction targets for better usability.