Implement editing of the schedule

Cobbled together minimum viable system for editing the schedule in a way
that propogates updates to connected clients.

app/globals.css

@@ -52,3 +52,15 @@ a {
 		border-color: transparent;
 	}
 }
+
+label {
+	display: block;
+}
+
+label>* {
+	margin-inline-start: 0.5rem;
+}
+
+label + label {
+	margin-block-start: 0.5rem;
+}