Add mailer API and initial mailer view

ts/format.ts

@@ -24,6 +24,16 @@ export function formatBigNumber(n: number): string {
 
 	return result;
 }
+export function formatDate(date: Date): string {
+	return new Intl.DateTimeFormat("en-US", {
+		year: "numeric",
+		month: "short",
+		day: "numeric",
+		hour: "2-digit",
+		minute: "2-digit",
+	}).format(date);
+}
+
 export function formatDistance(meters: number | undefined) {
 	if (meters === undefined || meters === null) {
 		return "unknown";