Small css and layout improvements for better consistency

jsx/src/components/ServerDashboard/ServerDashboard.jsx

@@ -462,9 +462,11 @@ const ServerDashboard = (props) => {
           <tbody>
             <tr className="noborder">
               <td>
-                <Button variant="light" className="add-users-button">
-                  <Link to="/add-users">Add Users</Link>
-                </Button>
+                <Link to="/add-users">
+                  <Button variant="light" className="add-users-button">
+                    Add Users
+                  </Button>
+                </Link>
               </td>
               <td></td>
               <td></td>
@@ -559,6 +561,7 @@ const ServerDashboard = (props) => {
                   Shutdown Hub
                 </Button>
               </td>
+              <td></td>
             </tr>
             {servers.flatMap(([user, server]) => serverRow(user, server))}
           </tbody>

jsx/src/components/ServerDashboard/server-dashboard.css

@@ -7,7 +7,7 @@
   margin-left: auto;
 }
 
-.server-dashboard-container .add-users-button {
+.server-dashboard-container .btn-light {
   border: 1px solid #ddd;
 }
 
@@ -38,3 +38,11 @@ tr.noborder > td {
   border: 1px solid #ddd;
   border-radius: 2px;
 }
+
+.table > tbody > tr.user-row > td {
+  vertical-align: inherit;
+}
+
+.user-row .actions > * {
+  margin-right: 5px;
+}