Added 'cloud storage' functionality

FastNotes/hooks/use-auth-context.tsx

@@ -0,0 +1,17 @@
+import { createContext, useContext } from 'react'
+
+export type AuthData = {
+  claims?: Record<string, any> | null
+  profile?: any | null
+  isLoading: boolean
+  isLoggedIn: boolean
+}
+
+export const AuthContext = createContext<AuthData>({
+  claims: undefined,
+  profile: undefined,
+  isLoading: true,
+  isLoggedIn: false,
+})
+
+export const useAuthContext = () => useContext(AuthContext)