Equal spacing required between module cards in grid view

Problem/Motivation

There should be equal spacing in between module cards when grid view (default) is selected.

Steps to reproduce

- Install the module.
- Check Browse projects page at /admin/modules/browse

Proposed resolution

- Add equal spacing in between module cards without affecting list view.

Remaining tasks

• ✅ File an issue about this project
• ☐ Manual Testing
• ☐ Code Review
• ☐ Accessibility Review
• ☐ Automated tests needed/written?