🔧 Get rid of $ from port as it was an error

conduit/settings.py

@@ -25,8 +25,8 @@ class Config(object):
         'http://localhost:4200',
         'http://0.0.0.0:4000',
         'http://localhost:4000',
-        'http://0.0.0.0:' + os.environ.get('$PORT', '8080'),
-        'https://0.0.0.0:' + os.environ.get('$PORT', '8080'),
+        'http://0.0.0.0:' + os.environ.get('PORT', '8080'),
+        'https://0.0.0.0:' + os.environ.get('PORT', '8080'),
         os.environ.get('FRONT_PROD_URL', ''),
     ]
     JWT_HEADER_TYPE = 'Token'