add login/sign-up page with dark/light mode

node_modules/next/dist/lib/memory/gc-observer.d.ts

@@ -0,0 +1,12 @@
+/**
+ * Starts recording garbage collection events in the process and warn on long
+ * running GCs. To disable, call `stopObservingGc`.
+ */
+export declare function startObservingGc(): void;
+export declare function stopObservingGc(): void;
+/**
+ * Returns all recorded garbage collection events. This function will only
+ * return information from when `startObservingGc` was enabled and before
+ * `stopObservingGc` was called.
+ */
+export declare function getGcEvents(): PerformanceEntry[];