feat(mobile): change bottom bar buttons

[idubnori]

Description

This PR consolidates the outcome of the discussion so far and applies the agreed changes to the bottom action buttons.

• Reflect the current consensus on which actions should be visible per context
• Keep the scope limited to button composition

Button changes by context

Context	Current buttom buttons	After this change	Unit tests
Asset (local only)	share, upload, edit	share, upload, edit, delete	✓
Shared album	share, edit, addto, delete	share, addto, open activity, like	✓
Locked folder	(none)	share, unlock, delete	✓

• Minor adjustments
  • No visual or behavioral change other than text wrapping support

How has this been tested?

• Unit tests added for the updated button lists and regressions
• Visual regression checks across the affected contexts

Screenshots (if appropriate)

screen-recording-immich-18.mp4

Checklist:

• I have performed a self-review of my own code
• I have made corresponding changes to the documentation if applicable
• I have no unrelated changes in the PR.
• I have confirmed that any new dependencies are strictly necessary.
• I have written tests for new code (if applicable)
• I have followed naming conventions/patterns in the surrounding code
• All code in src/services/ uses repositories implementations for database calls, filesystem operations, etc.
• All code in src/repositories/ is pretty basic/simple and does not have any immich specific logic (that belongs in src/services/)

Please describe to which degree, if any, an LLM was used in creating this pull request.

• initial impl / refactoring / test code