quit -> exit as screen is not accessible in alt instance

when using makeSingleInstance
which leads to a weird error
Unhandled exception { Error: Cannot find module '../screen'

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

electron_app/src/electron-main.js

@@ -156,7 +156,7 @@ const shouldQuit = electron.app.makeSingleInstance((commandLine, workingDirector
 
 if (shouldQuit) {
     console.log("Other instance detected: exiting");
-    electron.app.quit()
+    electron.app.exit();
 }
 
 electron.app.on('ready', () => {