[Freestyler] Form submission button: disable on submit

Fixed: 379985372
Change-Id: I721304257f5d8de67570e00d5a9ce2b0b41855c0
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/6038332
Auto-Submit: Wolfgang Beyer <[email protected]>
Reviewed-by: Nikolay Vitkov <[email protected]>
Commit-Queue: Wolfgang Beyer <[email protected]>

Author: wolfib

front_end/panels/freestyler/components/UserActionRow.ts

@@ -166,6 +166,7 @@ export class UserActionRow extends HTMLElement {
     }
     this.#props.onFeedbackSubmit(this.#currentRating, input.value);
     this.#isShowingFeedbackForm = false;
+    this.#isSubmitButtonDisabled = true;
     this.#render();
   };