Merge branch 'master' into glitch-soc/merge-upstream

Conflicts:
- app/javascript/mastodon/features/compose/components/compose_form.js
  Upstream cleaned up a bit, including on lines in which
  we replaced the hardcoded 500 character limit with a maxChar
  constant. Applied the changes while keeping maxChar instead of 500.
- app/javascript/packs/public.js
  Moved upstream's new animated avatar hover handling in
  app/javascript/core/public.js
- app/javascript/styles/fonts/montserrat.scss
  Upstream fixed local font name, applied those changes.
- app/javascript/styles/fonts/roboto.scss
  Upstream fixed local font name, applied those changes.
- lib/mastodon/version.rb
  Upstream made repo URL configurable, did the same, but
  default to glitch-soc

Gemfile

@@ -29,7 +29,7 @@ gem 'browser'
 gem 'charlock_holmes', '~> 0.7.6'
 gem 'iso-639'
 gem 'chewy', '~> 5.0'
-gem 'cld3', '~> 3.2.3'
+gem 'cld3', '~> 3.2.4'
 gem 'devise', '~> 4.6'
 gem 'devise-two-factor', '~> 3.0'
 
@@ -42,7 +42,7 @@ gem 'omniauth-cas', '~> 1.1'
 gem 'omniauth-saml', '~> 1.10'
 gem 'omniauth', '~> 1.9'
 
-gem 'doorkeeper', '~> 5.0'
+gem 'doorkeeper', '~> 5.1'
 gem 'fast_blank', '~> 1.0'
 gem 'fastimage'
 gem 'goldfinger', '~> 2.1'
@@ -143,7 +143,7 @@ group :development do
 end
 
 group :production do
-  gem 'lograge', '~> 0.10'
+  gem 'lograge', '~> 0.11'
   gem 'redis-rails', '~> 5.0'
 end