Changes:
- Fixed: incorrect highlighting of the active section in the user list. When there were only a few employees/roles/locations, interface areas overlapped, which caused the active section to be highlighted incorrectly. Layout (clickable areas) and the logic for determining the active section have been fixed — highlighting now correctly matches the selected item.

- Added: option to select a dark theme in settings — the interface can be switched between light and dark modes.
- Added: a project visibility setting has been introduced in the project settings interface. Toggling visibility now enables the use of the Spotfix widget — once the status is changed, the embed code for the widget can be generated immediately.

- Implemented: re-authentication via a PopUp window when the session expires. Now, if authorization is lost, the user is not redirected to the login page — the interface remains unchanged. All data entered by the user (for example, comment text, task description, or board details) is preserved and remains available for resubmission after successful login.
