Fix hide_cursor on multi spinners

[orgads]

Describe the change

Fix hide_cursor on multi spinners

Why are we doing this?

When a spinner is done, it writes "show" sequence, leading to cursor reappearance, although others are still spinning.

Benefits

Rehide the cursor on sub-done.

Drawbacks

Requirements

• [ ] Tests written & passing locally?
• [X] Code style checked?
• [X] Rebased with master branch?
• [X] Documentation updated?
• [X] Changelog updated?