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

Conflicts:
- app/views/stream_entries/_simple_status.html.haml
- config/locales/nl.yml

Deleted unused translation strings (themes) and adapted minor changes to
_simple_status.html.haml

spec/views/stream_entries/show.html.haml_spec.rb

@@ -12,6 +12,7 @@ describe 'stream_entries/show.html.haml', without_verify_partial_doubles: true d
     allow(view).to receive(:full_asset_url).and_return('//asset.host/image.svg')
     allow(view).to receive(:local_time)
     allow(view).to receive(:local_time_ago)
+    allow(view).to receive(:current_account).and_return(nil)
     assign(:instance_presenter, InstancePresenter.new)
   end