chore: update getCurrentDomain to return undefined when not allowing localhost

src/libs/maybeScheduleNextAiringEpisode.ts

@@ -18,11 +18,7 @@ export async function maybeScheduleNextAiringEpisode(
   aniListId: number,
 ) {
   const domain = getCurrentDomain(req);
-  if (
-    domain.includes("localhost") ||
-    domain.includes("127.0.0.1") ||
-    domain.includes("192.168.1")
-  ) {
+  if (!domain) {
     return;
   }