* fix: prevent trashing of trashed assets
Motivation
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This will improve user experience by hiding a pointless action.
You can not trash a trashed asset again. It won't get any trashier than it already is.
How to test
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1. Visit route `/trash`
2. Click on an asset
3. Press "Delete" on your keyboard
4. Nothing happens
5. Try to find the trash button in the top right
6. You can't find it
* refactor: follow @michelheusschen's review
See:
https://github.com/immich-app/immich/pull/10028#pullrequestreview-2105296755
* refactor: follow @michelheusschen's 2nd review
See: https://github.com/immich-app/immich/pull/10028#discussion_r1632057833