Bugfix: fix return key submission of IntText widgets

Author: agoose77

packages/controls/src/widget_int.ts

@@ -600,6 +600,10 @@ export class IntTextView extends DescriptionView {
    */
   handleKeypress(e: KeyboardEvent): void {
     if (/[e,.\s]/.test(String.fromCharCode(e.keyCode))) {
+      // Handle return key submission
+      if (e.keyCode === 13) {
+        this.handleChanged(e);
+      }
       e.preventDefault();
     }
   }