Fixes temporary mute. Adds temp mute indicator in muted items view. S…

[alltheseas]

…igned off by -npub1zafcms4xya5ap9zr7xxr0jlrtrattwlesytn2s42030lzu0dwlzqpd26k5

Summary

Fixes temporary muting. Adds temporary muting time remaining indicator in muted items view.

Checklist

• I have read (or I am familiar with) the Contribution Guidelines
• [ongoing] I have tested the changes in this PR
• [https://github.com/temporarily mute #1452#issuecomment-3362611907] I have opened or referred to an existing github issue related to this change.
• My PR is either small, or I have split it into smaller logical commits that are easier to review
• I have added the signoff line to all my commits. See Signing off your work
• I have added appropriate changelog entries for the changes in this PR. See Adding changelog entries
  • I do not need to add a changelog entry. Reason: [Please provide a reason]
• I have added appropriate Closes: or Fixes: tags in the commit messages wherever applicable, or made sure those are not needed. See Submitting patches

Test report

Fixes temporary mute. Adds time remaining temporary mute in muted items view.

Device: iPhone 17 xcode simulator

iOS: iOS 26 xcode simulator

Damus: cloned https://github.com/damus-io/damus/ on Oct 13 2025. 1.15 (1) f2870b9

Setup: xcode simulator

Steps: ONGOING temporarily muted an item. Verified that item no longer appears in universe view.

Results:

• PASS
• Partial PASS
  • Details: Testing that temporary mutes disappear in 24 hours. @alltheseas to check by end of Oct 15.

Other notes