[Feature request] Persist zoom level setting

Submitted by Codifier

Assigned to Igor @f2404

Link to original bug (#11762)

Description

When I browse multiple images in Ristretto, I'd like for Ristretto to be able to persist the chosen zoom level setting across images (particularly when I choose 'fit to screen').

In my current version (0.6.3), if I chose 'fit to screen' for one image and move to another image in the Thumbnailbar list, the zoom level resets to 100%.

Would you be willing to add a preference that allows me to persist the zoom level setting for the current session and/or even persist it across multiple sessions?

Thank you in advance!

Version: 0.6.3