introduced supabase and experiment management UI (#23)

* introduced supabase and experiment management UI

* fixing cookie import

web/src/utils/supabase/middleware.ts

@@ -0,0 +1,37 @@
+import { createServerClient, type CookieOptions } from "@supabase/ssr";
+import { type NextRequest, NextResponse } from "next/server";
+
+const supabaseUrl = process.env.NEXT_PUBLIC_SUPABASE_URL;
+const supabaseKey = process.env.NEXT_PUBLIC_SUPABASE_ANON_KEY;
+
+export const createClient = (request: NextRequest) => {
+  // Create an unmodified response
+  let supabaseResponse = NextResponse.next({
+    request: {
+      headers: request.headers,
+    },
+  });
+
+  const supabase = createServerClient(
+    supabaseUrl!,
+    supabaseKey!,
+    {
+      cookies: {
+        getAll() {
+          return request.cookies.getAll()
+        },
+        setAll(cookiesToSet) {
+          cookiesToSet.forEach(({ name, value, options }) => request.cookies.set(name, value))
+          supabaseResponse = NextResponse.next({
+            request,
+          })
+          cookiesToSet.forEach(({ name, value, options }) =>
+            supabaseResponse.cookies.set(name, value, options)
+          )
+        },
+      },
+    },
+  );
+
+  return supabaseResponse
+};