Improve docker container

Author: NuckChorris

.dockerignore

@@ -2,3 +2,4 @@ bower_components
 node_modules
 tmp/*
 dist/*
+.git/*

Dockerfile

@@ -1,17 +1,18 @@
-FROM node:20-alpine
+FROM node:20-bookworm
 
 RUN mkdir -p /opt/kitsu/client
+RUN npm set cache /var/cache/npm
 
 # Preinstall dependencies in an earlier layer so we don't reinstall every time
 # any file changes.
 COPY ./package.json /opt/kitsu/client/
 COPY ./package-lock.json /opt/kitsu/client/
 WORKDIR /opt/kitsu/client
-RUN npm ci
+RUN --mount=type=cache,target=/var/cache/npm npm install
 
 # *NOW* we copy the codebase in
 COPY . /opt/kitsu/client
 
 ENTRYPOINT ["npm", "run"]
 CMD ["dev", "--port=80", "--strictPort"]
-EXPOSE 80
+EXPOSE 80