use QSettings to store window geometry

cutesettings.py

@@ -0,0 +1,13 @@
+from PyQt6.QtCore import QSettings
+
+
+class CuteSettings:
+
+    def __init__(self):
+        self._settings = QSettings("opentext", "ravenlog")
+
+    def set_value(self, key: str, value: any):
+        self._settings.setValue(key, value)
+
+    def value(self, key: str, default=None):
+        return self._settings.value(key, default)