Merge branch 'vue3-again' into 'develop'

.babelrc

.gitlab-ci.yml

build/webpack.base.conf.js

build/webpack.dev.conf.js

build/webpack.prod.conf.js

package.json

src/App.js

src/App.scss

src/App.vue

src/boot/after_store.js

src/boot/routes.js

...omponents/async_component_error/async_component_error.vue

src/components/auth_form/auth_form.js

src/components/basic_user_card/basic_user_card.vue

src/components/bookmark_timeline/bookmark_timeline.js

src/components/chat/chat.js

src/components/chat/chat.vue

src/components/chat_message/chat_message.js

src/components/chat_title/chat_title.js

src/components/checkbox/checkbox.vue