re-enable nip-04 with more polish, prepare for nip-44

src/stores/sidebar.ts

@@ -0,0 +1,24 @@
+import { create } from 'zustand';
+import { createJSONStorage, persist } from 'zustand/middleware';
+
+interface SidebarState {
+  feeds: boolean;
+  chats: boolean;
+  toggleFeeds: () => void;
+  toggleChats: () => void;
+}
+
+export const useSidebar = create<SidebarState>()(
+  persist(
+    (set) => ({
+      feeds: true,
+      chats: true,
+      toggleFeeds: () => set((state) => ({ feeds: !state.feeds })),
+      toggleChats: () => set((state) => ({ chats: !state.chats })),
+    }),
+    {
+      name: 'sidebar',
+      storage: createJSONStorage(() => localStorage),
+    }
+  )
+);