[HowTo] Fix "Cannot mix incompatible Qt library"

[maycne.sonahoz]

kvantum is now preferred for setting a theme to Qt applications in a GTK environment.
https://wiki.archlinux.org/title/Uniform_look_for_Qt_and_GTK_applications#Kvantum

---

Also, as already stated, the rebuild requirement may concern any Qt application in AUR, whether it is deprecated or has simply never been added to the main repositories.

@maycne.sonahoz

How do i rebuild an AUR package?

Rebuilding an AUR package is the same as (re)installing it. The only difference is usually that (build) dependencies have changed, and the package thus needs to be rebuilt in order to stay compatible with the system.