Improve background check handling, and hide services until connection is proved.

launcher/style.css

@@ -5,6 +5,21 @@ window {
   font-family: sans-serif;
 }
 
+/* Startup Messages */
+.startup-message {
+  padding: 32px;
+}
+
+.startup-message-title {
+  font-size: 55px;
+  font-weight: 700;
+}
+
+.startup-message-description {
+  font-size: 28px;
+  opacity: 0.7;
+}
+
 /* Large, prominent clock */
 label.date-display {
     font-size: 28px;