Fix issue where jj could not be entered in Vim mode (#347)

* Fix issue where `jj` could not be entered in Vim mode

* Update Editor.tsx

frontend/src/components/editor/Editor.tsx

@@ -1,7 +1,7 @@
 import { markdown } from "@codemirror/lang-markdown";
 import { EditorState } from "@codemirror/state";
 import { keymap } from "@codemirror/view";
-import { Vim, vim } from "@replit/codemirror-vim";
+import { vim } from "@replit/codemirror-vim";
 import { basicSetup } from "@uiw/codemirror-extensions-basic-setup";
 import { xcodeDark, xcodeLight } from "@uiw/codemirror-theme-xcode";
 import { EditorView } from "codemirror";
@@ -94,9 +94,6 @@ function Editor(props: EditorProps) {
 			],
 		});
 
-		// Vim key mapping: Map 'jj' to '<Esc>' in insert mode
-		Vim.map("jj", "<Esc>", "insert");
-
 		const view = new EditorView({ state, parent: element });
 		dispatch(setCmView(view));