UI (#15)

Adding new Admin UI. Updating Fredy to V3.0.0 as it has been a large rewrite. Thanks for all contributions and help on the way!

ui/src/services/time/timeService.js

@@ -0,0 +1,12 @@
+export function format(ts) {
+  return new Intl.DateTimeFormat('default', {
+    year: 'numeric',
+    month: 'numeric',
+    day: 'numeric',
+    hour: 'numeric',
+    minute: 'numeric',
+    second: 'numeric',
+  }).format(ts);
+}
+
+export const roundToNext5Minute = (ts) => Math.ceil(ts / (1000 * 60 * 5)) * (1000 * 60 * 5);