fix: 🐛 setting the keys correctly for production NODE_ENV (#52)

use the PRIVATE_KEY from environment variable and fix issue with nconf.set not working properly

Author: raduachim

lib/config.js

@@ -1,6 +1,7 @@
 require('dotenv').config()
 const { JWK } = require('@panva/jose')
 const config = require('nconf')
+  .use('memory')
   .argv()
   .env()
   .defaults({
@@ -96,7 +97,7 @@ switch (config.get('NODE_ENV')) {
   default:
     checkMissingKeys(config, ['PORT', 'HOST', 'DATABASE_URL', 'PRIVATE_KEY'])
 
-    config.set('PRIVATE_KEY', privateKey(config.get('HOST'), '-----BEGIN RSA PRIVATE KEY-----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\nr6NAWQS0VNdXEmJVmdoKFhJAeUvLrXPtBGqPS7HO6A8A\n-----END RSA PRIVATE KEY-----\n'))
+    config.set('PRIVATE_KEY', privateKey(config.get('HOST'), config.get('PRIVATE_KEY')))
     config.set('PUBLIC_KEY', publicKey(config.get('PRIVATE_KEY')))
 
     module.exports = config