fix: template defects

src/components/MarkdownTemplate/LayoutEditor.js

@@ -1,13 +1,14 @@
-import React, {useState} from 'react';
+import React, {useEffect, useState} from 'react';
 const LayoutEditor = ({layout, onChange}) => {
     const [_layout, setLayout] = useState(layout || "");
+    useEffect(() => {setLayout(layout)}, [layout]);
     return (
         <textarea
             className="textarea"
             value={_layout}
             onChange={(e) => {
                 setLayout(e.target.value);
-                onChange(layout);
+                onChange(e.target.value);
             }}
         />
     );