Fix profile photo gallery hover jump

[aapeliv]

The profile photo gallery items had a transform: scale(1.02) on hover, which made the hovered image visibly jump and clip into the grid gaps. Removed the scale transform — the box-shadow on hover is enough of a hover affordance.

Testing

• Open a user profile that has a photo gallery and hover over thumbnails: the image no longer jumps/scales, just gains a soft shadow.
• Verified at desktop, tablet, and mobile breakpoints.

Web frontend checklist

• There are no console warnings when running the app
• Added tests where relevant
• Clicked around my changes running locally and it works
• Checked Desktop, Mobile and Tablet screen sizes

For maintainers

• Maintainers can push commits to my branch
• Maintainers can merge this PR for me

This PR was created with the Couchers PR skill.

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Project	Deployment	Actions	Updated (UTC)
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[github-actions]

📝 Release Notes

This PR does not need to be included in release notes.

Reason: This PR fixes a minor visual hover effect issue in the profile photo gallery. While user-visible, it is a small UI polish change rather than a significant UX improvement or important bug fix affecting core functionality.

🤖 Bot Debug Information

Model: couchers.openai.gpt-5.4
Decision: exclude
Reasoning: This PR fixes a minor visual hover effect issue in the profile photo gallery. While user-visible, it is a small UI polish change rather than a significant UX improvement or important bug fix affecting core functionality.