Merge pull request #2052 from jlmitch5/fixInstancesList

instance list fixes

awx/ui/client/lib/components/list/_index.less

@@ -263,6 +263,12 @@
     }
 }
 
+@media screen and (max-width: @at-breakpoint-instances-wrap) {
+    .at-Row-items--instances {
+        margin-bottom: @at-padding-bottom-instances-wrap;
+    }
+}
+
 @media screen and (max-width: @at-breakpoint-compact-list) {
     .at-Row-actions {
         flex-direction: column;