Media download: add default resolutions for icon, cover and background image

[jbarrere]

Feature description

When editing several games media files to download icon, cover and wallpaper, it would be great to be able to define default resolution for the icon, cover and wallpapers to avoid setting the values manually each time a download is done.

I use fixed values for my library, to get the medias for my games: Icons: 128x128 Covers: 600x900 Wallpapers: Preset 2560x1440 (1440p)

I was thinking of something like this in the Settings/Metadata/Web image search menu (sorry about the screenshot quality): Be able to select a preset value (2560x1440 (1440p), 1920x620 (Steam Hero), 1920x1080 (1080p)), or add a custom one.

When searching for the game media: Icon: default value is selected

Wallpaper: default preset is selected

Thanks a lot :)

[chocolatechipcats]

Possibly related: #3157

[darklinkpower]

As a tip, you can already do this by adding imagesize:1920x1080