revert(TBadge): add back in h* size variants

Author: VividLemon

apps/playground/src/components/Comps/TBadge.vue

@@ -4,6 +4,36 @@
       <b-col>
         <b-badge>New</b-badge>
       </b-col>
+      <b-col>
+        <h2>
+          Example heading
+          <b-badge>New</b-badge>
+        </h2>
+      </b-col>
+      <b-col>
+        <h3>
+          Example heading
+          <b-badge>New</b-badge>
+        </h3>
+      </b-col>
+      <b-col>
+        <h4>
+          Example heading
+          <b-badge>New</b-badge>
+        </h4>
+      </b-col>
+      <b-col>
+        <h5>
+          Example heading
+          <b-badge>New</b-badge>
+        </h5>
+      </b-col>
+      <b-col>
+        <h6>
+          Example heading
+          <b-badge>New</b-badge>
+        </h6>
+      </b-col>
     </b-row>
     <b-row>
       <b-col> Variants </b-col>