change docker build

Dockerfile

@@ -1,4 +1,4 @@
-FROM nikolaik/python-nodejs:latest
+FROM node:14
 WORKDIR /usr/src/fosscord-server/
 COPY . .
 WORKDIR /usr/src/fosscord-server/bundle

docker-compose.yml

@@ -1,24 +1,7 @@
 version: "3"
 services:
-    db:
-        hostname: fosscord_db
-        image: mongo:latest
-        volumes:
-            - ./db:/data/db
-        restart: unless-stopped
-    api:
-        hostname: fosscord_api
-        image: fosscord/api
-        depends_on:
-            - db
-        ports:
-            - 3001:3001
-        env_file: ./.docker/env
-    gateway:
-        hostname: fosscord_gateway
-        image: fosscord/gateway
-        depends_on:
-            - db
-        ports:
-            - 3002:3002
-        env_file: ./.docker/env
+  server:
+    image: fosscord/server
+    build: .
+    ports:
+      - 3001:3001