remove button outlines on-click for retweet, boost, favourite, and reply
buttons

fix ProcessFeedService pushing status into distribution if called a second time
while the first is still running (i.e. when a PuSH comes after a Salmon slap),
fix not running escape on spoiler text before emojify

Currently we have two problems that are resolved by this change.

The first is that we have a dependency on Google Fonts, which means
that should it ever go down, or it have issues we would also have
issues. This will resolve this by moving the dependencies we load from
there to the local server.

The second issue is that Google Fonts is currently returning the
`local()` css font source. This causes a problem where the users browser
fails to fallback to a missing glyph, resulting in many unusual
characters displaying the failure glyph. This will resolve this by
creating a font-family definition that does not use the `local()`
source.

I did not update the error pages with local fonts, they still use the
remote google fonts api, so they're a self contained page that does not
use the asset pipeline.

This resolves tootsuite/mastodon#531 and tootsuite/mastodon#12

for extremely wide monitors

improved how "show more" link looks

Currently, the getting started text fails WCAG standards for color contrast by a lot. Especially on the part overlapping with the elephant graphic which is nearly unreadable even for users with 20|20 vision. This change doesn't fix the elephant overlap but at least makes the text meet AAA WCAG Small Text color contrast standards, making it easier to read.

Federate spoiler_text using warning attribute on <content /> instead of a <category term="spoiler" />
Clean up schema file from accidental development migrations

in the background instead. Should fix delay where blocked person
can interact with blocker for a short time before background job
gets processed

affected, replaced onClick handler with onMouseUp/Down to detect text
selection not trigger onClick handler then