[PM-25603] Use angular template for avatar (#15978)

We should be able to simplify the angular component by using svg element directly.

apps/browser/src/auth/popup/account-switching/current-account.component.html

@@ -12,7 +12,6 @@
       [color]="currentAccount.avatarColor"
       size="small"
       aria-hidden="true"
-      class="[&>img]:tw-block"
     ></bit-avatar>
   </button>
   <ng-template #defaultButton>

apps/browser/src/popup/scss/pages.scss

@@ -137,3 +137,8 @@ body.body-full {
     margin-bottom: 0;
   }
 }
+
+/** Temporary fix for avatar, will not be required once we migrate to tailwind preflight **/
+bit-avatar svg {
+  display: block;
+}