Merge branch 'dev_vald_fe/be' into 'develop'

src/App.vue

src/components/favorite_button/favorite_button.vue

src/components/media_upload/media_upload.vue

src/components/notification/notification.vue

src/components/retweet_button/retweet_button.vue

src/components/status/status.vue

src/components/user_finder/user_finder.vue

src/components/user_settings/user_settings.vue

src/i18n/en.json