Fix admin account avatar margin (#9020)

app/javascript/styles/mastodon/rtl.scss

@@ -317,11 +317,9 @@ body.rtl {
 .landing-page__information {
   .account__display-name {
     margin-right: 0;
-    margin-left: 5px;
   }
 
   .account__avatar-wrapper {
-    margin-left: 12px;
-    margin-right: 0;
+    margin-left: 0;
   }
 }