feat: create config class to replace use of config file in application

src/logic/thread_bookgrabber.py

@@ -2,12 +2,11 @@ import sqlite3
 
 from PyQt6.QtCore import QThread
 from PyQt6.QtCore import pyqtSignal as Signal
-from omegaconf import OmegaConf
 from src.backend.database import Database
 from src.logic.log import MyLogger
 from src.logic.webrequest import BibTextTransformer, WebRequest
 
-config = OmegaConf.load("config.yaml")
+
 
 
 class BookGrabber(QThread):