Change from h2 to h3

Change-Id: I21f606f1b96f80a1250426c834c41fbb3d8d2615

web/gr-delete-repo.ts

diff --git a/web/gr-delete-repo.ts b/web/gr-delete-repo.ts
index 0bad785..5d1b537 100644
--- a/web/gr-delete-repo.ts
+++ b/web/gr-delete-repo.ts
@@ -68,9 +68,9 @@
           margin-bottom: var(--spacing-xxl);
         }
         /* TODO: Find a way to use shared styles in lit elements in plugins. */
-        h3 {
-          font: inherit;
-          margin: 0;
+        h2 {
+          margin-top: var(--spacing-xxl);
+          margin-bottom: var(--spacing-s);
         }
         .error {
           color: red;
@@ -95,7 +95,7 @@
   override render() {
     if (!this.action) return;
     return html`
-      <h3>${this.action.label}</h3>
+      <h2 class="heading-2">${this.action.label}</h2>
       <gr-button
         title="${this.action.title}"
         ?disabled="${!this.action.enabled}"