Added auto-focus behaviour to page editor

- Will focus on title if the value of the field matches the default text
for the current user's language.
- Otherwise will focus on the editor body.
- Added and tested on both editors.

For #2036

resources/js/components/wysiwyg-editor.js

@@ -402,6 +402,10 @@ function listenForBookStackEditorEvents(editor) {
         editor.setContent(content);
     });
 
+    // Focus on the editor
+    window.$events.listen('editor::focus', () => {
+        editor.focus();
+    });
 }
 
 class WysiwygEditor {