Requests for new keys on the Settings portal

[orowith2os]

The Settings portal is a fair bit limited, between most keys being under the org.gnome namespace, or being nonexistent entirely. This issue is meant to keep track of requests for new standardized keys from Linux desktops (like GNOME/GTK and KDE/QT).

Keys that might be useful right now are:

• double-click interval
• cursor-blink
• scrollbar-warp (see https://docs.gtk.org/gtk4/property.Settings.gtk-primary-button-warps-slider.html for reference)

Current efforts for new keys:

• reduce-animation, status-shapes, and always-show-scrollbars keys: settings: Add animation-scale, status-shapes, and always-show-scrollbars keys #1590
• cursor-theme and cursor-theme-size: settings: Add cursor-theme and cursor-theme-size #1539
• button-placement: Button placement key  #996
• date and time formats: Settings portal: Date and Time formats #1530
• color deficiency hints: Draft: Colour filter hint in Settings Portal #1177 (comment)

[nicolasfella]

I've opened https://bugreports.qt.io/browse/QTBUG-133044 to gather input from the Qt side

[orowith2os]

I appreciate the participation from QT, thanks :)