add account selection, settings, login modal

Change-Id: Ica6d38270c783de070bf1d5bb30603173dbeb0df
diff --git a/jaas-client/src/App.css b/jaas-client/src/App.css
index 74b5e05..915ab44 100644
--- a/jaas-client/src/App.css
+++ b/jaas-client/src/App.css
@@ -28,6 +28,10 @@
   color: #61dafb;
 }
 
+.loginCard {
+  margin-top: 2em;
+}
+
 @keyframes App-logo-spin {
   from {
     transform: rotate(0deg);