Feat: Add notifications menu

Frontend/src/components/shell/TopBar/TopBar.tsx

@@ -4,6 +4,7 @@ import { For, type JSX } from "solid-js";
 import type { Theme } from "../../../theme/runtime";
 import { topBarActions } from "../data/shell.data";
 import { DepartmentSelector } from "../DepartmentSelector/DepartmentSelector";
+import { NotificationsNav } from "./NotificationsNav";
 import { ThemeToggle } from "./ThemeToggle";
 import { UserNav } from "./UserNav";
 import styles from "./TopBar.module.scss";
@@ -36,6 +37,7 @@ export const TopBar = (props: TopBarProps): JSX.Element => {
 					</For>
 				</div>
 
+				<NotificationsNav />
 				<ThemeToggle theme={props.theme} onToggle={props.onToggleTheme} />
 				<UserNav />
 			</div>