Blocking will prevent e-mail notifications from blocked user, blocks in UI

app/assets/javascripts/components/actions/accounts.jsx

...s/javascripts/components/components/status_action_bar.jsx

...pts/components/features/account/components/action_bar.jsx

app/assets/javascripts/components/features/account/index.jsx

app/assets/javascripts/components/reducers/timelines.jsx

app/assets/stylesheets/components.scss

app/services/favourite_service.rb

app/services/follow_service.rb

app/services/process_feed_service.rb

app/services/process_interaction_service.rb

app/services/process_mentions_service.rb

app/services/reblog_service.rb