Updated Docker file to include npm as a new requirement for the admin-lte npm module.

Also added session persistence setting to default and docker configuration files.

Changed the default persistence configuration of the default config file to use SQLite instead of MySQL.

docker/Dockerfile

@@ -7,6 +7,7 @@ ARG BUILD_DEPENDENCIES="build-base \
     openldap-dev \
     python3-dev \
     xmlsec-dev \
+    npm \
     yarn \
     cargo"