feat(notifications): add notification history page and API

This commit introduces the notification history feature, allowing users to view a log of their past notifications.

Key changes include:
- Added a "Notifications" link to the sidebar with a new icon.
- Defined API endpoints for fetching notification history and details.
- Added a "sent" status variant for displaying notification status.

Additionally, this commit includes related UI improvements:
- The user's full name is now dynamically displayed in the header, replacing the hardcoded placeholder.
- Table headers are now styled in uppercase for improved readability and consistency.

src/utils/shared.ts

@@ -6,6 +6,18 @@ export const msToDate = (ms: number) => {
   return moment.default(ms).format("YYYY/MM/DD");
 };
 
+export const isoStringToDate = ({
+  hasTime = false,
+  isoString,
+}: {
+  isoString: string;
+  hasTime: boolean;
+}): string => {
+  return moment
+    .default(isoString)
+    .format(`YYYY/MM/DD ${hasTime ? "HH:MM" : ""}`);
+};
+
 export const getStatusColor = <T>(status: T) => {
   switch (status) {
     case "active":