Update filebrowser.js

Author: benhatsor

filebrowser.js

@@ -3104,9 +3104,9 @@ function setupEditor() {
 
   // update on screen resize
 
-  const portrait = window.matchMedia('(orientation: portrait)');
+  const landscape = window.matchMedia('(orientation: landscape)');
 
-  portrait.addEventListener('change', updateLineNumbersHTML);
+  landscape.addEventListener('change', updateLineNumbersHTML);
 
 
   let beautifierOptions = {