Added the token as OS environment variable (but it's still saved as commented constant for precaution)
Added the ability to use config service (for example port)
Added the ability to use profile -> today we support only 'local' profile, but others can be added easily (for example to use 'dev' profile, we need to modify the npm run script with 'APP_PROFILE=dev' variable and add a 'config/envs/dev.config.ts' file
As part of issue https://github.com/joblike/joblike-service/issues/10