hotfix: alt+dot breakage

packages/codemirror/codemirror.mjs

@@ -99,10 +99,8 @@ export function initEditor({ initialCode = '', onChange, onEvaluate, onStop, roo
           },
           {
             key: 'Alt-.',
-            run: (_, e) => {
+            preventDefault: true,
-              e.preventDefault();
+            run: () => onStop?.(),
-              onStop?.();
-            },
           },
           /* {
           key: 'Ctrl-Shift-.',