Add server name to errors, Closes #25

src/api/miscellaneous/errors.py

 import json
 from flask.wrappers import Response
 
+import api
 from api.miscellaneous.constants import *
 
+_SERVER_NAME = api.config["API_SERVER_NAME"]
+
 
 class ApiError:
     
@@ -21,7 +24,8 @@ class ApiClientException(Exception):
 def api_on_error(error: ApiError):
     error_json = {
         "error_code": error.error_code,
-        "message": error.message
+        "message": error.message,
+        "server": _SERVER_NAME
     }
     return Response(json.dumps(error_json), error.http_status_code, mimetype="application/json")