Refactor AuthContext into smaller files

Refactors the AuthContext.tsx file into smaller, more manageable files to improve code organization and maintainability. The functionality remains the same.

src/hooks/useToast.wrapper.ts

@@ -0,0 +1,5 @@
+
+import { useToast as useOriginalToast, toast as originalToast } from '@/hooks/use-toast';
+
+export const useToast = useOriginalToast;
+export const toast = originalToast;