Moved docker files to backend

Dockerfile

@@ -1,21 +0,0 @@
-FROM alpine:3.11
-
-RUN apk add --update npm python ffmpeg
-
-# Change directory so that our commands run inside this new directory
-WORKDIR /app
-
-# Copy dependency definitions
-COPY ./ /app/
-
-# Change directory to backend
-WORKDIR /app
-
-# Install dependencies on backend
-RUN npm install
-
-# Expose the port the app runs in
-EXPOSE 17442
-
-# Run the specified command within the container.
-CMD [ "node", "app.js" ]