Make draft comments more prominent

Do not show the author name when a comment is in draft state. Instead
show the blue "draft" icon.

Screenshots https://imgur.com/a/VpcB65o

Release-Notes: skip
Google-Bug-Id: b/227352232
Change-Id: Ice96cf572b3743168d70d3ecd2f216f36131a49d
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 86ba96a..4b72b26 100644
--- a/polygerrit-ui/app/elements/shared/gr-comment/gr-comment.ts
+++ b/polygerrit-ui/app/elements/shared/gr-comment/gr-comment.ts
@@ -355,11 +355,13 @@
           flex: 1;
           overflow: hidden;
         }
-        .draftLabel,
         .draftTooltip {
-          color: var(--deemphasized-text-color);
+          font-weight: var(--font-weight-bold);
           display: inline;
         }
+        .draftTooltip gr-icon {
+          color: var(--info-foreground);
+        }
         .date {
           justify-content: flex-end;
           text-align: right;
@@ -525,6 +527,7 @@
   }
 
   private renderAuthor() {
+    if (isDraftOrUnsaved(this.comment)) return;
     if (isRobot(this.comment)) {
       const id = this.comment.robot_id;
       return html`<span class="robotName">${id}</span>`;
@@ -553,7 +556,7 @@
 
   private renderDraftLabel() {
     if (!isDraftOrUnsaved(this.comment)) return;
-    let label = 'DRAFT';
+    let label = 'Draft';
     let tooltip =
       'This draft is only visible to you. ' +
       "To publish drafts, click the 'Reply' or 'Start review' button " +
@@ -568,8 +571,8 @@
         has-tooltip
         title=${tooltip}
         max-width="20em"
-        show-icon
       >
+        <gr-icon filled icon="rate_review"></gr-icon>
         <span class="draftLabel">${label}</span>
       </gr-tooltip-content>
     `;