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/indexer/Cargo.toml

@@ -8,7 +8,6 @@ license.workspace = true
 anyhow.workspace = true
 axum.workspace = true
 chrono.workspace = true
-image.workspace = true
 notify = "6.1"
 parsers = { path = "../../crates/parsers" }
 rand.workspace = true
@@ -24,4 +23,3 @@ tracing.workspace = true
 tracing-subscriber.workspace = true
 uuid.workspace = true
 walkdir.workspace = true
-webp = "0.3"