Dockerfile: update for npm changes
Drop explicit global installation of npm modules, building the JS
frontend parts does not require this anymore now that it entirely
relies on npm.
FROM node:dubnium-buster AS jsBuilder
WORKDIR /src/
COPY . .
-RUN npm install -g requirejs uglify-js jade bower \
- && make init js
+RUN make init js
# Second, create virtualenv
FROM python:3.8-buster AS venvBuilder
