Remove package.json references and client version

Dockerfile

@@ -10,7 +10,6 @@ RUN mvn -B package -DskipTests
 FROM eclipse-temurin:17-jre
 WORKDIR /app
 COPY --from=build /app/target/imgfloat-*.jar app.jar
-COPY package.json ./
 EXPOSE 8080 8443
 ENV JAVA_OPTS=""
 ENTRYPOINT ["sh", "-c", "exec java ${JAVA_OPTS} -jar app.jar"]