Move shared CSS/JS from templates to static/style.css and static/app.js

templates/device_add.html

@@ -129,17 +129,5 @@ function toggleSubcomponents(cb) {
     size.setAttribute('required', '');
   }
 }
-
-function metaSelectChanged(sel, inputId) {
-  var input = document.getElementById(inputId);
-  if (sel.value === '__new__') {
-    input.style.display = '';
-    input.value = '';
-    input.focus();
-  } else {
-    input.style.display = 'none';
-    input.value = sel.value;
-  }
-}
 </script>
 {% endblock %}