refactor: session handling (#2398)

* refactor session handling

* simplify

src/app/stores/auth.ts

@@ -1,18 +1,25 @@
-export const useAuthStore = defineStore('Auth', () => {
-  const { data: userData, refresh: update } = useFetch('/api/session', {
-    method: 'get',
-  });
+import type { H3Event } from 'h3';
+import type { SharedPublicUser } from '~~/shared/utils/permissions';
 
-  async function getSession() {
+export const useAuthStore = defineStore('Auth', () => {
+  const userData = useState<SharedPublicUser | null>('user-data', () => null);
+
+  async function getSession(event?: H3Event) {
+    const fetch = event?.$fetch || $fetch;
     try {
-      const { data } = await useFetch('/api/session', {
+      const data = await fetch('/api/session', {
         method: 'get',
       });
-      return data.value;
+      return data;
     } catch {
       return null;
     }
   }
 
+  async function update() {
+    const data = await getSession();
+    userData.value = data;
+  }
+
   return { userData, update, getSession };
 });