new mention popup in composer

src/shared/composer/mention/suggestion.tsx

@@ -1,68 +0,0 @@
-import { ReactRenderer } from '@tiptap/react';
-import tippy from 'tippy.js';
-
-import { MentionList } from '@shared/composer';
-
-export const Suggestion = {
-  items: async ({ query }) => {
-    const users = [];
-    return users
-      .filter((item) => item.ident.toLowerCase().startsWith(query.toLowerCase()))
-      .slice(0, 5);
-  },
-
-  render: () => {
-    let component;
-    let popup;
-
-    return {
-      onStart: (props) => {
-        component = new ReactRenderer(MentionList, {
-          props,
-          editor: props.editor,
-        });
-
-        if (!props.clientRect) {
-          return;
-        }
-
-        popup = tippy('body', {
-          getReferenceClientRect: props.clientRect,
-          appendTo: () => document.body,
-          content: component.element,
-          showOnCreate: true,
-          interactive: true,
-          trigger: 'manual',
-          placement: 'bottom-start',
-        });
-      },
-
-      onUpdate(props) {
-        component.updateProps(props);
-
-        if (!props.clientRect) {
-          return;
-        }
-
-        popup[0].setProps({
-          getReferenceClientRect: props.clientRect,
-        });
-      },
-
-      onKeyDown(props) {
-        if (props.event.key === 'Escape') {
-          popup[0].hide();
-
-          return true;
-        }
-
-        return component.ref?.onKeyDown(props);
-      },
-
-      onExit() {
-        popup[0].destroy();
-        component.destroy();
-      },
-    };
-  },
-};