fix(auth): treat intermittent plex.tv PIN 404s as transient (#3599)

src/utils/plex.ts

@@ -156,6 +156,11 @@ class PlexOAuth {
           setTimeout(executePoll, 1000, resolve, reject);
         }
       } catch (e) {
+        const status = axios.isAxiosError(e) ? e.response?.status : undefined;
+        if (status === 404 && Date.now() < deadline) {
+          setTimeout(executePoll, 1000, resolve, reject);
+          return;
+        }
         this.closePopup();
         reject(e);
       }