B15921 Codemirror for editing reports in frontend is not resizable, so it does...

B15921 Codemirror for editing reports in frontend is not resizable, so it does not interfere with the resize ability of the external window. refs #15921

less/qfq-bs.css.less

@@ -1464,6 +1464,6 @@ input.qfq-password {
   font-size: 10pt;
 }
 
-.CodeMirror {
+.CodeMirror:not(.externWindow > .CodeMirror) {
   resize: both;
 }
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