chore: Upgrade all of prosemirror (#5366)

Co-authored-by: Apoorv Mishra <apoorvmishra101092@gmail.com>

shared/editor/extensions/Keys.ts

@@ -5,8 +5,9 @@ import {
   AllSelection,
   TextSelection,
   EditorState,
+  Command,
 } from "prosemirror-state";
-import Extension, { Command } from "../lib/Extension";
+import Extension from "../lib/Extension";
 import isInCode from "../queries/isInCode";
 
 export default class Keys extends Extension {