feat: implement thumbnail generation and management

- Remove unused image dependencies from Cargo.lock.
- Update API to handle thumbnail generation and checkup processes.
- Introduce new routes for rebuilding and regenerating thumbnails.
- Enhance job tracking with progress indicators for thumbnail jobs.
- Update front-end components to display thumbnail job status and progress.
- Add backend logic for managing thumbnail jobs and integrating with the API.
- Refactor existing code to accommodate new thumbnail functionalities.

apps/backoffice/app/components/JobsList.tsx

@@ -111,6 +111,7 @@ export function JobsList({ initialJobs, libraries, highlightJobId }: JobsListPro
               <th className="px-4 py-3 text-left text-xs font-semibold text-muted-foreground uppercase tracking-wider">Type</th>
               <th className="px-4 py-3 text-left text-xs font-semibold text-muted-foreground uppercase tracking-wider">Status</th>
               <th className="px-4 py-3 text-left text-xs font-semibold text-muted-foreground uppercase tracking-wider">Files</th>
+              <th className="px-4 py-3 text-left text-xs font-semibold text-muted-foreground uppercase tracking-wider">Thumbnails</th>
               <th className="px-4 py-3 text-left text-xs font-semibold text-muted-foreground uppercase tracking-wider">Duration</th>
               <th className="px-4 py-3 text-left text-xs font-semibold text-muted-foreground uppercase tracking-wider">Created</th>
               <th className="px-4 py-3 text-left text-xs font-semibold text-muted-foreground uppercase tracking-wider">Actions</th>