Elements must have sufficient color contrast

[meduzen]

From latest Playwright action, in:

• 10 links matching a .site__link__inner (various contrasts);
• .caniuse .site__description (contrast: 3.17)
• .cssdb .site__description (contrast: 4.24)
• .caniemail .site__description (contrast: 3.01)
• footer links with the accent class (contrast: 3.5)

Ensures the contrast between foreground and background colors meets WCAG 2 AA contrast ratio thresholds
Expected contrast ratio of 4.5:1

Level: WCAG 2 AA (1.4.3), serious (Axe color-contrast).

• Instead of strict compliance, consider testing color contrast using APCA. For now, no automation is available for this (thou it could be built), and nothing is planned at Deque.
• For the 10 links matching a > .site__link__inner, these are the labels of full-clickable cards becoming more readable on hover or focus. Research how good/bad it is.