Spike: Improve security policy pages accessibility

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Context

Per this comment

  1. Generally, the policies listing has only one accessibility issue left The Not enabled should use a bit darker grey to improve the contrast, maybe gl-text-subtle?

  2. Edit policy page still has some room for improvement 😄 I recommend running a scan with axe devTools browser extension. It will show more results than the linter.

Plan

  • create an issue for 1
  • run the axe devTools browser extension (firefox) on all pages and create issues for all improvements found
Edited by 🤖 GitLab Bot 🤖