Refactor auth logic.

lib/session.js

@@ -31,7 +31,7 @@ export async function getSession(req) {
 
   let websiteId = null;
 
-  // Check if websites exists
+  // Check if website exists
   if (redis.enabled) {
     websiteId = Number(await redis.get(`website:${websiteUuid}`));
   }