Clean Sonar findings: merge RUNs, drop commented code, update node imports

Dockerfile

@@ -45,13 +45,12 @@ RUN apt-get update \
       /var/lib/apt/lists/* \
       /var/tmp/*
 
-RUN useradd -ms /bin/bash fgc
-
 # RUN node --version
 # RUN npm --version
 
-RUN ln -s /usr/share/novnc/vnc_auto.html /usr/share/novnc/index.html
-RUN pip install apprise
+RUN useradd -ms /bin/bash fgc \
+    && ln -s /usr/share/novnc/vnc_auto.html /usr/share/novnc/index.html \
+    && pip install apprise
 
 WORKDIR /fgc
 COPY package*.json ./
@@ -71,8 +70,7 @@ COPY test ./test
 COPY docker-entrypoint.sh ./
 
 # Shell scripts need Linux line endings. On Windows, git might be configured to check out dos/CRLF line endings, so we convert them for those people in case they want to build the image. They could also use --config core.autocrlf=input
-RUN dos2unix ./*.sh && chmod +x ./*.sh
-RUN chown -R fgc:fgc /fgc
+RUN dos2unix ./*.sh && chmod +x ./*.sh && chown -R fgc:fgc /fgc
 COPY docker-entrypoint.sh /usr/local/bin/
 
 ARG COMMIT=""