Improve card and user profile formatting

app/scss/custom.scss

@@ -3,6 +3,10 @@
 @import "packagegrid.scss";
 @import "comments.scss";
 
+.dropdown-menu {
+    margin-top: 0;
+}
+
 .dropdown:hover .dropdown-menu {
    display: block;
 }
@@ -21,6 +25,10 @@
     text-decoration: none;
 }
 
+.card .table {
+    margin-bottom: 0;
+}
+
 .btn-download {
     color: #fff;
     background-color: #00b05c;