Auto close notes

[vitonsky]

While long research sessions user may open a lot of tabs. We should improve the UX to auto close an unnecessary tabs according to a user policy.

Every workspace have its own policy.

The feature draft requirements

• Close the oldest opened notes by reach the opened notes limit (FIFO by the timestamp of note opening)
• Never close a pinned tabs. Also, optionally we could exclude the pinned tabs from a count of opened notes
• Optionally: auto close notes by timeout. The timeout is applied to a current session. The timeout is reset by open the note tab. The active note or a pinned tabs is never closes