Updated the jdrbot to be at the same standard as potatos

Dockerfile

@@ -0,0 +1,14 @@
+FROM openjdk:18-ea-jdk-slim-bullseye AS builder
+WORKDIR /app
+COPY . /app
+RUN ./gradlew shadowJar
+
+FROM openjdk:18-ea-slim-bullseye AS runner
+LABEL authors="skydust"
+WORKDIR /app
+
+COPY --from=builder /app/build/libs/JdrBot-all.jar /app/JdrBot.jar
+COPY Songs /app/Songs
+COPY start.sh /app
+
+CMD ["/bin/bash","./start.sh"]