builder structure and data model update cycle

src/main.css

@@ -79,17 +79,20 @@ a[button].disabled {
 }
 
 input:not([type="checkbox"]),
-textarea {
+textarea,
+select {
   @apply rounded-md shadow-sm relative block w-full px-3 py-2 border border-gray-300 focus:border-primary placeholder-gray-500 text-gray-900 rounded-b-md focus:outline-none focus:ring-0 focus:z-10 sm:text-sm resize-none;
 }
 
 input[readonly],
-textarea[readonly] {
+textarea[readonly],
+select[readonly] {
   @apply pointer-events-none;
 }
 
 input[disabled],
-textarea[disabled] {
+textarea[disabled],
+select[disabled] {
   @apply opacity-75 pointer-events-none;
 }