The lock button shows the remaining time

To increase awareness of time remaining before the database closes by default parameters, it would be useful if the perimeter outline of the lock button showed a circular line backward running as a graphical representation of time remaining.

Start by locating the lock button and the code controlling the database's default closing time. Determine how the remaining time is calculated and where the button is rendered. Done means the button perimeter shows a backward-running circular indicator that represents the remaining time before the database closes.

Written by the indexing model from the issue text.