Code folding was not visible when line numbers were disabled. Fixed

Author: Federico Fissore

Diff for: app/src/processing/app/Editor.java

@@ -464,10 +464,9 @@ protected void applyPreferences() {
     textarea.setEditable(!external);
     saveMenuItem.setEnabled(!external);
     saveAsMenuItem.setEnabled(!external);
-    
-    scrollPane.setLineNumbersEnabled(Preferences.getBoolean("editor.linenumbers"));
 
     textarea.setCodeFoldingEnabled(Preferences.getBoolean("editor.code_folding"));
+    scrollPane.setLineNumbersEnabled(Preferences.getBoolean("editor.linenumbers"));
 
     if (external) {
       // disable line highlight and turn off the caret when disabling