fix(profile): allow category editing in media detail modal

Description:

Merge Description

Summary

This change fixes profile media editing so categories can be updated when clicking Edit in the media detail modal.

What changed

• Enabled category selection in edit mode inside MediaDetailModal.
• Reused existing category logic by extending CategoryTags with an optional editable mode (no duplicate category-fetch implementation).
• Included updated category_ids in the record PATCH payload.
• Added category-aware “no changes” detection.
• Prevented saving when no category is selected.

Scope

• Minimal, targeted fix only for category edit behavior in profile media details.
• Existing read-only category display remains unchanged.

Validation

• Ran: npm run type-check
• Result: passed

Issue

closes #239 (closed)

Type of Change:

• Bug Fix
• Feature Development
• Documentation

Testing:

• Tested on desktop
• Tested on mobile
• Tested in different browsers

Screenshots (if applicable):

Add a link to the demo of the PR

If you have used AI create this PR, please also record video of yourself explaining the changes.

Link to code walkthrough

Checklist:

• Code follows project style guidelines
• Self-review completed
• No console errors
• TypeScript types are correct