Fixed the issue where the frontend was not copied to Docker.

Dockerfile

@@ -13,6 +13,7 @@ COPY requirements.txt ./
 RUN pip install --no-cache-dir -r requirements.txt
 
 COPY app ./app
+COPY frontend ./frontend
 
 EXPOSE 8080
 

docker-compose.yml

@@ -1,13 +1,11 @@
-version: "3.9"
-
 services:
   plex-playlist-sync:
     build: .
     command: uvicorn app.main:app --host 0.0.0.0 --port 8080 --reload
     ports:
-      - "8080:8080"
+      - "8888:8080"
     volumes:
-      - ./:/app
+      - path_to_your_playlist:/app/playlist
     environment:
       - PYTHONUNBUFFERED=1
       - PYTHONDONTWRITEBYTECODE=1