fix lint error

apps/app/src/components/UncontrolledCodeMirror.tsx

@@ -5,6 +5,11 @@ import React, {
 import { commands, Editor } from 'codemirror';
 import { ICodeMirror, UnControlled as CodeMirror } from 'react-codemirror2';
 
+declare global {
+  // eslint-disable-next-line vars-on-top, no-var
+  var CodeMirror: any;
+}
+
 // set save handler
 // CommandActions in @types/codemirror does not include 'save' but actualy exists
 // https://codemirror.net/5/doc/manual.html#commands