fixed some bugs, dark/white mode fix and sessionid in url

shared/date-helper.ts

@@ -0,0 +1,13 @@
+export function formatDate(date: string): string {
+    if (date == "") {
+        return "No date";
+    }
+    var d = new Date(date);
+    return pad(d.getDate()) + "-" + pad(d.getMonth() + 1) + "-" + d.getFullYear() + " " + pad(d.getHours()) + ":" + pad(d.getMinutes());
+}
+
+function pad(value: number): string {
+    var strVal = value.toString();
+
+    return strVal.length > 1 ? strVal : "0" + strVal;
+}