fix: strict optional errors (#1759)

* fix strict optional errors

* fix typing in repository

* fix backup db files location

* update workspace settings

mealie/core/exceptions.py

@@ -3,6 +3,17 @@ from sqlite3 import IntegrityError
 from mealie.lang.providers import Translator
 
 
+class UnexpectedNone(Exception):
+    """Exception raised when a value is None when it should not be."""
+
+    def __init__(self, message: str = "Unexpected None Value"):
+        self.message = message
+        super().__init__(self.message)
+
+    def __str__(self):
+        return f"{self.message}"
+
+
 class PermissionDenied(Exception):
     """
     This exception is raised when a user tries to access a resource that they do not have permission to access.