Added notes

src/routes/+layout.svelte

@@ -170,6 +170,9 @@ if ($ae_loc && $ae_sess && ($ae_loc.ver != $ae_sess.ver)) {
 // BEGIN: Expired Cache Check:
 // localStorage caches - Check if the last refresh timestamp for $ae_loc.last_refresh is no more than 48 hours ago.
 
+// Minutes reference:
+// 240 = 4 hours; 720 = 12 hours; 2880 = 48 hours;
+// 10080 = 1 week; 20160 = 2 weeks; 43200 = 1 month;
 let default_refresh_minutes: number = 60;
 let trusted_refresh_minutes: number = 120;
 let manager_refresh_minutes: number = 2880;