pidgin/nest

c1fbb1f6b8e5
WCAG 2 fixes for contrast and empty header

Testing Done:
Ran WAVE tool browser extension. They have a no-install, web version at https://wave.webaim.org/

As an example, improvement goes from 3+24 errors to 2+0 errors on https://pidgin.im/contact/

The colors are directly-scaled, viable suggestions, but it would be possible to make the green more green by exchanging red/blue for green while maintaining the same level of contrast. As an example #0c8a0c might be a bit more vibrant green. Please let me know if you would like me to suggest other slight color variations.

Bugs closed: NEST-45

Reviewed at https://reviews.imfreedom.org/r/777/
[build]
publish = "exampleSite/public"
command = "hugo -s exampleSite"
[build.environment]
HUGO_THEME = "repo"
HUGO_THEMESDIR = "/opt/build"
HUGO_VERSION = "0.50"
[context.production.environment]
HUGO_BASEURL = "https://learn.netlify.com/"
[context.deploy-preview]
command = "hugo -s exampleSite -b $DEPLOY_PRIME_URL"
[context.deploy-preview.environment]
HUGO_ENABLEGITINFO = "true"
[context.branch-deplpy]
command = "hugo -s exampleSite -b $DEPLOY_PRIME_URL"
[context.branch-deploy.environment]
HUGO_ENABLEGITINFO = "true"