PLT-3916 - Fixing flag icon position in the RHS (#3898)

webapp/sass/layout/_sidebar-right.scss

@@ -40,9 +40,13 @@
         .post__header {
             .col__name {
                 .user-popover {
-                    max-width: 130px;
+                    max-width: 120px;
                 }
             }
+
+            .flag-icon__container {
+                z-index: 5;
+            }
         }
     }