fix padding in card view

[RitwikSrivastava]

Please always provide the GitHub issue(s) your PR is for, as well as test URLs where your change can be observed (before and after):

Fixes #180

Test URLs:

• Original: https://www.sunstar-foundation.org/en/education/jsdei/gallery

• Before: https://main--sunstar-foundation--hlxsites.hlx.live/en/education/jsdei/gallery

• After: https://issue180--sunstar-foundation--hlxsites.hlx.live/en/education/jsdei/gallery

• [ ] New Blocks introduced in this PR If yes, please provide details below

Block Name	Documentation
For e.g. cards	doc-link

• [ ] New variations introduced in this PR

Variation Name	Documentation
For e.g. cards (grid)	doc-link

[aem-code-sync[bot]]

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Commits

* [d1349ac](https://github.com/hlxsites/sunstar-foundation/pull/226/commits/d1349acfc60a4cdfc141d826fe10b8eb74384bf1) :white_check_mark: (latest)

[aem-code-sync[bot]]

Page	Scores	Audits	Google
/en/education/jsdei/gallery

[github-actions[bot]]

:small_orange_diamond: 2 visual differences detected

• /en/awards/awards-photo-gallery/1107 (main vs branch)
  Expected an image 1280px by 2555px, received 1280px by 2595px. 344343 pixels (ratio 0.11 of all image pixels) are different.
• /sidekick/blocks/cards (main vs branch)
  Expected an image 1280px by 3264px, received 1280px by 3324px. 533344 pixels (ratio 0.13 of all image pixels) are different.

The diff images are attached in the artifact