fix(build): copy entrypoint before app

This is better as app/ will likely change more often than entrypoint.sh. Thus,
this change increases the degree to which the container's build layers can be
cached

Co-authored-by: Friedel Wolff <[email protected]>

Dockerfile

@@ -23,8 +23,8 @@ RUN <<EOF
 EOF
 
 # Copy project
-COPY ./app /app/
 COPY ./entrypoint.sh /
+COPY ./app /app/
 
 # Run the application
 ENTRYPOINT ["bash", "/entrypoint.sh"]