fix: update Dockerfile and remove .next from git

utils/supabase/client.ts

@@ -0,0 +1,8 @@
+import { createBrowserClient } from '@supabase/ssr'
+
+export function createClient() {
+    return createBrowserClient(
+        process.env.NEXT_PUBLIC_SUPABASE_URL!,
+        process.env.NEXT_PUBLIC_SUPABASE_PUBLISHABLE_DEFAULT_KEY!
+    )
+}