Change server settings

Dockerfile

@@ -1,13 +1,15 @@
 FROM gradle:8-jdk21 as cache
+WORKDIR /backend
 RUN mkdir -p /home/gradle/cache_home
 ENV GRADLE_USER_HOME /home/gradle/cache_home
-COPY /backend/build.gradle.kts /home/gradle/java-code/
+COPY /build.gradle.kts /home/gradle/java-code/
 WORKDIR /home/gradle/java-code
 RUN gradle clean build -i --stacktrace
 
 FROM gradle:8-jdk21 as builder
+WORKDIR /backend
 COPY --from=cache /home/gradle/cache_home /home/gradle/.gradle
-COPY /backend/. /usr/src/java-code/
+COPY . /usr/src/java-code/
 WORKDIR /usr/src/java-code
 RUN gradle bootJar -i --stacktrace