Merge branch 'cssOverhaul' into 'develop'

src/App.scss

src/App.vue

src/_variables.scss

src/components/attachment/attachment.vue

src/components/chat_panel/chat_panel.vue

src/components/conversation/conversation.vue

src/components/delete_button/delete_button.vue

src/components/favorite_button/favorite_button.vue

...nents/instance_specific_panel/instance_specific_panel.vue

src/components/login_form/login_form.vue

src/components/media_upload/media_upload.vue

src/components/nav_panel/nav_panel.vue

src/components/notifications/notifications.js

src/components/notifications/notifications.scss

src/components/notifications/notifications.vue

src/components/post_status_form/post_status_form.vue

src/components/registration/registration.vue

src/components/retweet_button/retweet_button.vue

src/components/settings/settings.vue

src/components/status/status.js