v1.0.5
Prevent no-change saves and duplicate backups.
Changes:
- Disable Save Preferences until the website-use preference toggles actually change.
- Disable Save full robots.txt until the editor contents actually change.
- Disable Restore recommended defaults when the saved settings already match the recommended defaults.
- Prevent no-change saves on the server side.
- Do not create backups when robots.txt content is unchanged.
- Add clearer “No changes to save” and “You have unsaved changes” messages.
- Update backup restore text to match the current restore behaviour.