RTL: fix margins of public-account-header__tabs (#8897)

* RTL: fix margins of public-account-header__tabs

* fix style

* even more stylish code :)

app/javascript/styles/mastodon/rtl.scss

@@ -302,5 +302,10 @@ body.rtl {
         margin-right: 0;
       }
     }
+
+    .public-account-header__tabs {
+      margin-left: 0;
+      margin-right: 20px;
+    }
   }
 }