Switch to node user

Dockerfile

@@ -16,16 +16,18 @@ RUN apt-get update -y && \
         build-essential    
 
 # Set a custom user to not have n8n run as root
-USER root
+USER node
 
 # Install n8n and the also temporary all the packages
 # it needs to build it correctly.
 RUN N8N_VERSION=$(curl -s https://api.github.com/repos/n8n-io/n8n/releases/latest | jq -r '.tag_name' | sed 's/^v//') && \
     echo "Latest n8n version: ${N8N_VERSION}" && \
     npm_config_user=root npm install -g \
-        ${N8N_VERSION} \ 
-        n8n-nodes-imap && \    
-    apt-get clean all
+        ${N8N_VERSION} && \   
+    apt-get clean all && \
+    mkdir -p ~/.n8n/nodes && \
+    cd ~/.n8n/nodes && \
+    npm install n8n-nodes-imap
    
 WORKDIR /data