chore(deps): remove already included @tiptap/extension-underline

Author: habibayman

package.json

@@ -59,7 +59,6 @@
     "@tiptap/extension-link": "^3.3.0",
     "@tiptap/extension-subscript": "^3.3.0",
     "@tiptap/extension-superscript": "^3.3.0",
-    "@tiptap/extension-underline": "^3.3.0",
     "@tiptap/starter-kit": "^3.3.0",
     "@tiptap/vue-2": "^3.3.0",
     "ajv": "^8.12.0",