Cleaned some form styling

Removed uppercasing of labels to make a little friendlier.
Extracted out toggleswitch JS into own component.
Improved basic code input for html-head-input area.

resources/assets/js/components/index.js

@@ -16,6 +16,7 @@ let componentMapping = {
     'editor-toolbox': require('./editor-toolbox'),
     'image-picker': require('./image-picker'),
     'collapsible': require('./collapsible'),
+    'toggle-switch': require('./toggle-switch'),
 };
 
 window.components = {};