feat(dockerfile): layered images [EE-4879] (#8301)

* multistage build to target production and storybook

* missing slash

* add storybook for windows too and build targets

* feature flag the storybook api

* remove kompose and prep for new FF lib

* todo comment for FF

* update to new feature flags library

* simplify logic

* fix compilation error

* simplified it

build/linux/Dockerfile

@@ -1,4 +1,4 @@
-FROM portainer/base
+FROM portainer/base as production
 
 LABEL org.opencontainers.image.title="Portainer" \
   org.opencontainers.image.description="Docker container management made simple, with the world’s most popular GUI-based container management platform." \
@@ -10,9 +10,19 @@ LABEL org.opencontainers.image.title="Portainer" \
   com.docker.extension.publisher-url="https://www.portainer.io" \
   com.docker.extension.additional-urls="[{\"title\":\"Website\",\"url\":\"https://www.portainer.io?utm_campaign=DockerCon&utm_source=DockerDesktop\"},{\"title\":\"Documentation\",\"url\":\"https://docs.portainer.io\"},{\"title\":\"Support\",\"url\":\"https://join.slack.com/t/portainer/shared_invite/zt-txh3ljab-52QHTyjCqbe5RibC2lcjKA\"}]"
 
-COPY dist /
+COPY dist/docker /
+COPY dist/docker-compose /
+COPY dist/helm /
+COPY dist/kubectl /
+COPY dist/mustache-templates /mustache-templates/
+COPY dist/portainer /
+COPY dist/public /public/
+
 COPY build/docker-extension /
 
+# storybook exists only in portainerci builds
+COPY dist/storybook* /storybook/
+
 VOLUME /data
 WORKDIR /
 
@@ -23,3 +33,4 @@ EXPOSE 8000
 LABEL io.portainer.server true
 
 ENTRYPOINT ["/portainer"]
+