Update version number from 0.3.9 to 0.3.10 in Cargo.toml and version.txt files.
Also, enhance image loading handling in multiple Vue components (ContainerItem, CurrentTrack, MediaItem, QueueItem, ServerDrawer) by:
- Adding ref and watch for tracking image loading states
- Implementing proper load and error handlers
- Using v-show to control image visibility based on loading state
- Adding image state tracking for each item in ServerDrawer
- Improving placeholder display logic
