Improve contrast of View and Contribute links

[hugovk]

Before, the contrast ratio is 3.1:

After, it's above the min 4.5 recommended by WCAG:

This colour is also used here, should we change that too?

.card:target {
  scroll-margin-top: 4.5rem;
  border-color: #1595fe;
}

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📊 Dashboard preview 📊: https://python-docs-translations.github.io/dashboard/159/merge/

[StanFromIreland]

LGTM

This colour is also used here, should we change that too?

I don't have a preference here, the difference is quite small. I'll leave it up to you.

[merwok]

I would change it! I added these card title anchors and used the same colour as other links.

[hugovk]

Changed!