fix(grid): scale grid thumbnails to fill the available tile width

[MaqsudMallick]

🖼️ Screenshots

🏚️ Before	🏡 After

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• ⛑️ Tests (unit and/or integration) are included or not needed
• 🔙 Backport requests are created or not needed: /backport to stable-xx.x
• 📅 Milestone is set
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🤖 AI (if applicable)

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Fixes #12627

[kra-mo]

Looks nice, consistent with the ideas for the grid view on the web. (Mainly for large thumbnails.)

[tobiasKaminsky]

Looks nice, consistent with the ideas for the grid view on the web. (Mainly for large thumbnails.)

I am unsure, since it then crops on the border of images, thus maybe loosing information on thumbnail?

[MaqsudMallick]

@tobiasKaminsky I am unable to recreate the loss of thumbnail that you mentioned when comparing the web version to my PR. Any suggestions on how can I proceed?

Tried with images of different orientations:

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