[mirotalksfu] - npm install on build

Dockerfile

@@ -5,3 +5,9 @@ WORKDIR /src
 RUN \
     DEBIAN_FRONTEND=noninteractive apt update && \
     apt install -y --no-install-recommends build-essential python3-pip
+
+COPY package.json .
+
+RUN npm install
+
+CMD npm start