feat: search modal

src/lib/stores/index.ts

@@ -65,6 +65,7 @@ export const banners: Writable<Banner[]> = writable([]);
 export const settings: Writable<Settings> = writable({});
 
 export const showSidebar = writable(false);
+export const showSearch = writable(false);
 export const showSettings = writable(false);
 export const showArchivedChats = writable(false);
 export const showChangelog = writable(false);