feat: port Containerfile to Vib recipe format

[kbdharun]

Changes

This PR ports the Containerfile to use the Vib recipe format. I have tested all the changes locally with the image https://github.com/kbdharun/VanillaOS-website/pkgs/container/website along with the command docker run -d -p 6080:6080 ghcr.io/kbdharun/website:main.

Details

Current Containerfile:

FROM node:20.10.0

WORKDIR /app
COPY . .

RUN npm install
RUN npm run build

EXPOSE 6080

CMD ["npm", "run", "start"]

New Vib Containerfile:

# Stage: build
FROM node:lts AS build
LABEL maintainer='Vanilla OS Contributors'
EXPOSE 6080/
ADD includes.container /
ADD sources /sources
RUN mv /sources/init /app
RUN cd /app && npm install && npm run build
CMD ["sh","-c","cd /app && npm run start"]