Don't collapse comment, when trying to delete.

The event is propagated to comment header which collapses the comment.
Collapsing the comment is not intended and also hides delete comment
icon, which can be confusing.

Google-Bug-Id: b/263745301
Release-Notes: skip
Change-Id: Ieb153d37f8c5773528360bbf75576fdbe9c11435
diff --git a/polygerrit-ui/app/elements/shared/gr-comment/gr-comment.ts b/polygerrit-ui/app/elements/shared/gr-comment/gr-comment.ts
index 5306cea..2d6c52f 100644
--- a/polygerrit-ui/app/elements/shared/gr-comment/gr-comment.ts
+++ b/polygerrit-ui/app/elements/shared/gr-comment/gr-comment.ts
@@ -644,7 +644,10 @@
         title="Delete Comment"
         link
         class="action delete"
-        @click=${this.openDeleteCommentModal}
+        @click=${(e: MouseEvent) => {
+          e.stopPropagation();
+          this.openDeleteCommentModal();
+        }}
       >
         <gr-icon id="icon" icon="delete" filled></gr-icon>
       </gr-button>