chore: add build workflow

[wa0x6e]

🧿 Current issues / What's wrong ?

The current production app is run directly with ts-node on typescript file, instead of with node on compiled js files.

This result in 10x more memory consumption.

My guess is that that solution was retained because the build workflow (tsc) does not copy the gql file to the final build directory.

💊 Fixes / Solution

• Run production app with node instead of ts-node

🚧 Changes

• Build files and run the production app with node command
• Add a post-build task to copy the gql file to the build directory

🛠️ Tests

• Run yarn build
• Run yarn start
• It should start the app

[ChaituVR]

tAck

[codecov]

Codecov Report

Merging #620 (a2c06b4) into master (5fa52a5) will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff           @@
##           master    #620   +/-   ##
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  Coverage    0.00%   0.00%           
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  Files          39      39           
  Lines        1696    1696           
  Branches       39      39           
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  Misses       1657    1657           
  Partials       39      39