Fix NODE_ENV in production

index.js

@@ -1,5 +1,5 @@
 
-require('dotenv').config();
+process.env.NODE_ENV = process.env.NODE_ENV || 'production';
 
 const { app, BrowserWindow } = require('electron');
 

package.json

@@ -31,7 +31,6 @@
     "bluebird": "^3.5.3",
     "camelcase": "^5.0.0",
     "d3": "^5.7.0",
-    "dotenv": "^6.1.0",
     "electron-store": "^2.0.0",
     "freedesktop-icons": "^0.1.0",
     "ini": "^1.3.5",

yarn.lock

@@ -2125,11 +2125,6 @@ dot-prop@^4.1.0:
   dependencies:
     is-obj "^1.0.0"
 
-dotenv@^6.1.0:
-  version "6.1.0"
-  resolved "https://registry.yarnpkg.com/dotenv/-/dotenv-6.1.0.tgz#9853b6ca98292acb7dec67a95018fa40bccff42c"
-  integrity sha512-/veDn2ztgRlB7gKmE3i9f6CmDIyXAy6d5nBq+whO9SLX+Zs1sXEgFLPi+aSuWqUuusMfbi84fT8j34fs1HaYUw==
-
 duplexer3@^0.1.4:
   version "0.1.4"
   resolved "https://registry.yarnpkg.com/duplexer3/-/duplexer3-0.1.4.tgz#ee01dd1cac0ed3cbc7fdbea37dc0a8f1ce002ce2"