Fix up cards

[hxtree]

This pull request fixes the styling issues with the cards in the codebase. It updates the card layout, adds missing styles, and improves the overall appearance of the cards.

[codacy-production[bot]]

Coverage summary from Codacy

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Coverage variation	Diff coverage
:white_check_mark: -0.20%	:white_check_mark: 0.00%

Coverage variation details

| | Coverable lines | Covered lines | Coverage | | ------------- | ------------- | ------------- | ------------- | | Common ancestor commit (805fae903257d80b2304dfc4bf5d97dd5ed170d4) | 2231 | 1616 | 72.43% | | | Head commit (0ae5402ecbfb3cd297592edf0adde482fa83902d) | 2233 (+2) | 1613 (-3) | 72.23% (**-0.20%**) | **Coverage variation** is the difference between the coverage for the head and common ancestor commits of the pull request branch: ` - `

Diff coverage details

| | Coverable lines | Covered lines | Diff coverage | | ------------- | ------------- | ------------- | ------------- | | Pull request (#873) | 4 | 0 | **0.00%** | **Diff coverage** is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: `/ * 100%`

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