Added groups and restricted access.

Backend/Settings.py

@@ -42,6 +42,8 @@ DefaultSettings: dict[str, Any] = {
     "NewEntryButtonsAtTop": False,
     "StickyToolbar": True,
     "ConfirmBeforeDelete": True,
+    "VisibleInBlame": True,
+    "ShowBlameAvatars": False,
 }
 
 DefaultThemesDirectory = ApplicationDirectory / "DefaultThemes"
@@ -135,6 +137,13 @@ def SaveSettings(Username: str, NewSettings: dict[str, Any]) -> dict[str, Any]:
     return Merged
 
 
+def RenameUserSettings(OldUsername: str, NewUsername: str) -> None:
+    OldPath = GetSettingsPath(OldUsername)
+
+    if OldPath.is_file():
+        OldPath.rename(GetSettingsPath(NewUsername))
+
+
 def ListThemeNames() -> list[str]:
     EnsureDataDirectory()
     return sorted(ThemeFile.stem for ThemeFile in GetThemesDirectory().glob("*.toml"))