[Feature] Add difficulty info in save file preview

[amethystgosling163]

GZDoom version

4.10.0

Which game are you running with GZDoom?

Doom 2

What Operating System are you using?

Linux x86_64

If Other OS, please describe

No response

Relevant hardware info

Intel® Core™ i5-4300U × 4, Intel® HD Graphics 4400 (HSW GT2), Lenovo ThinkPad T440s

Is your feature request related to a problem? Please describe.

Difficulty for save file is not shown in save game preview. This would make it convenient to load the right save file of the same map out of multiple without knowing the save time necessarily, especially if the save file screenshot preview is the same between both (or multiple) save files of different difficulties, e.g. for autosave. Small feature but useful.

Describe the solution you'd like

Add a difficulty info in save file preview in load game page.

Describe alternatives you've considered

No response

Add any other context or screenshots about the feature request here.

No response