[FEATURE] Wallhaven - Add Image res filter

[linuxgamerlife]

Submission checklist

• I have searched existing issues and confirmed this has not been requested before.
• I have checked existing pull requests for similar changes.

Feature type

UI / visual improvement

Feature summary

Add resolution filter to Wallhaven

Motivation / use case

Having the ability to filter the wallpapers in Wallhaven would make it easier to skip low res images for those with higher res monitors.

Proposed solution

Expand sort field to include resolution options (Large, Medium, Small)

Alternatives considered

No response

References / related projects

No response

Additional context

No response