implement imageviewer useradjustable setting in gtk4 implementation

add new imageviewer implementation (GTK)

implement remaining textarea functions (QT)

add textarea (QT)

add togglebutton and checkbox (QT)

implement all grid layout features (QT)

implement passwordfield (QT)

add textfield (QT)

add grid container (QT)

add label (QT)

add button (QT)

add box container (QT)

use pkg-config for qt5 compiler flags

merge

remove old Qt code

(0) -300 -100 -15 +15 +100 +300 tip

mercurial