Throttle autosave actions

[Ka0o0]

Is your suggestion for improvement related to a problem? Please describe.
While I was debugging for issue #5658 I noticed that when doing a find and replace the save action will be performed for every change in entries.

Describe the solution you'd like
A common way of limiting unnecessary write operations is to introduce some sort of throttling. It works in a way that the application waits for n milliseconds until it actually performs the write operation. If, however, during the time another change has occurring the original task is canceled and the delay is restarted.

Additional context
Java provides a Timer class which can be used for this purpose