revert unnecessary changes

src/App.vue

src/boot/routes.js

src/components/about/about.vue

src/components/attachment/attachment.js

src/components/attachment/attachment.vue

src/components/basic_user_card/basic_user_card.vue

src/components/block_card/block_card.vue

src/components/chat_panel/chat_panel.js

src/components/chat_panel/chat_panel.vue

src/components/color_input/color_input.vue

src/components/contrast_ratio/contrast_ratio.vue

src/components/conversation-page/conversation-page.vue

src/components/conversation/conversation.js

src/components/conversation/conversation.vue

src/components/delete_button/delete_button.js

src/components/delete_button/delete_button.vue

src/components/dm_timeline/dm_timeline.vue

src/components/emoji-input/emoji-input.js

src/components/emoji-input/emoji-input.vue

src/components/export_import/export_import.vue