Changed
- Fresh installs now start with an empty Coffer URL field.
- Added https://coffer.yourhost.com as placeholder guidance.
- Existing saved Coffer URLs remain unchanged.

Fixed
- Eliminated the brief refresh/fade of all TOTP code rows when copying a code.
- Copy feedback now updates only the selected code while keeping every other row stable.

Coffer v1.1.3
- Added secure “Keep unlocked” support for up to 12 hours, including across background service worker restarts.
- TOTP codes can now be copied by clicking the displayed code.
- Fixed the one-second refresh flicker affecting code values and their borders.
- Improved and enlarged the “This Page” section for better readability.
- Improved session restoration, expiration and cleanup behavior.