refactored model, fixed utf-8 export json

src/brovski-adress-etiketten-verwaltung.py

@@ -8,6 +8,7 @@ from tkinter import ttk
 
 from config import Config
 from connector import JSONConnector
+from model import Model
 from windows import SettingsWindow, EditRecord, show_error
 
 
@@ -36,7 +37,7 @@ class Application:
         self.filter_active = tk.BooleanVar(value=False)
 
         # model connector
-        self.model = JSONConnector()
+        self.model = Model(JSONConnector())
 
         # init paths to json and csv file
         self.json_file_name = "brovski-adress-etiketten-verwaltung.json"