feat: add shared resource section to profile

[kristian-zendato]

• Resolves: User Profile - 4 - New Sections #30867

Summary

Adds a You & {user} shared resources section on other users' profile so viewers can quickly see what they have in common

• New OCS endpoint GET /apps/profile/api/v1/resources/{userId} returns shared file/folder and upcoming calendar events between the current user and the profile owner
• Shared files show previews(or a folder icon), relative timestaps, and links into Files
• Shared calendar events(when Calendar is enabled) link in to the Calendar app
• Frontend loads resources only when viewing another user's profile and renders SharedResourcesSection

Checklist

• Code is properly formatted
• Sign-off message is added to all commits
• Tests (unit, integration, api and/or acceptance) are included
• Screenshots before/after for front-end changes
• Documentation (manuals or wiki) has been updated or is not required
• Backports requested where applicable (ex: critical bugfixes)
• Labels added where applicable (ex: bug/enhancement, 3. to review, feature component)
• Milestone added for target branch/version (ex: 32.x for stable32)

AI (if applicable)

• The content of this PR was partly or fully generated using AI