fix selection styles

apps/studio/styles/ui.scss

@@ -306,11 +306,19 @@
   color: #333 !important;
 }
 
-::selection {
+::selection:not(.ProseMirror *) {
   background-color: #6ee7b7;
   color: #333 !important;
 }
 
+.ProseMirror-selectednode {
+  .node-supa-input,
+  .node-supa-block {
+    outline: 1px solid theme('borderColor.brand.DEFAULT');
+    outline-offset: 2px;
+  }
+}
+
 .has-hidden-children {
   .visible-child {
     transition: opacity 0.2s ease;