feat: footnotes (#2384)

* feat: footnotes

* feat: proper DOCX support

apps/client/src/features/editor/components/fixed-toolbar/groups/more-inserts-group.tsx

@@ -12,6 +12,7 @@ import {
   IconMathFunction,
   IconRotate2,
   IconSitemap,
+  IconSuperscript,
   IconTable,
   IconTag,
 } from "@tabler/icons-react";
@@ -270,6 +271,12 @@ export const MoreInsertsGroup: FC<Props> = ({ editor, templateMode }) => {
         >
           {t("Math block")}
         </Menu.Item>
+        <Menu.Item
+          leftSection={<IconSuperscript size={16} />}
+          onClick={() => editor.chain().focus().addFootnote().run()}
+        >
+          {t("Footnote")}
+        </Menu.Item>
       </Menu.Dropdown>
     </Menu>
   );

apps/client/src/features/editor/components/slash-menu/menu-items.ts

@@ -30,6 +30,7 @@ import {
   IconTag,
   IconMoodSmile,
   IconRotate2,
+  IconSuperscript,
 } from "@tabler/icons-react";
 import {
   CommandProps,
@@ -177,6 +178,16 @@ const CommandGroups: SlashMenuGroupedItemsType = {
       command: ({ editor, range }: CommandProps) =>
         editor.chain().focus().deleteRange(range).setPageBreak().run(),
     },
+    {
+      title: "Footnote",
+      description: "Insert a footnote reference.",
+      searchTerms: ["footnote", "reference", "citation", "note"],
+      icon: IconSuperscript,
+      command: ({ editor, range }: CommandProps) => {
+        editor.chain().focus().deleteRange(range).run();
+        editor.commands.addFootnote();
+      },
+    },
     {
       title: "Image",
       description: "Upload any image from your device.",