Arjen Hiemstra authored Feb 09, 2022 and Nate Graham committed Mar 10, 2022

This adds support for animating showing/hiding of the input method panel
to the sliding popup effect, if the input panel is of type "Toplevel".

This is mainly intended to animate showing the virtual keyboard and has
been primarily tested with Maliit. It replaces the client-side animation
that Maliit would do, instead doing the animation on the KWin side which
provides a significantly smoother experience.