Add footer with link + copyright notice

ui/src/App.svelte

@@ -24,6 +24,12 @@ main {
   margin-right: auto;
 */
 
+}
+footer {
+  margin-top: 3em;
+  border-top: 1px solid #ddd;
+  text-align: center;
+  background: #f7f7f7;
 }
 </style>
 
@@ -43,4 +49,12 @@ main {
 
   </Router>
 
+  <footer>
+    <p>
+      Powered by <a href="https://github.com/EmbarkStudios/wireguard-ui">WireGuard UI</a>.
+    </p>
+    <p>
+      Copyright &copy; 2019 <a href="https://embark-studios.com">Embark Studios</a>.
+    </p>
+  </footer>
 </div>

ui/src/Clients.svelte

@@ -55,7 +55,7 @@ h2 small {
 }
 
 .help {
-flex-basis: 20%;
+flex-basis: 10%;
 }
 
 h2 {