feat(client): 投稿フォームのボタンの説明を表示するように (#6408)

* Add title attr with buttons on the post form

* fix

* tooltip

* missing ;

* remove title attr

* fix bug

* Update reactions-viewer.details.vue

* help wip

* ok!

* i18n

Co-authored-by: syuilo <Syuilotan@yahoo.co.jp>

src/client/directives/index.ts

@@ -4,9 +4,11 @@ import userPreview from './user-preview';
 import autocomplete from './autocomplete';
 import size from './size';
 import particle from './particle';
+import tooltip from './tooltip';
 
 Vue.directive('autocomplete', autocomplete);
 Vue.directive('userPreview', userPreview);
 Vue.directive('user-preview', userPreview);
 Vue.directive('size', size);
 Vue.directive('particle', particle);
+Vue.directive('tooltip', tooltip);