The non-themed import basically is just a proxy using some
auto-detection to find out which theme to use.
As the app only uses the basic theme, this is what we'll import.
Seems that the problem we saw on Android is also present on
Linux and Wayland.
A lot of components no longer use the palette which makes it
not possible to use them as-is with our light/dark theme feature.
This changes the many components to the Flowee specific ones
where we already solved this for the Android UI.
This follows the re-designed the 'import wallet' to
now have the same design and featureset from mobile also on
desktop.
The 'new-wallet' pages in general have also been changed as to
avoid wasting most of the space on the advertisment style
content and aim to have a vertical design so we avoid forcing
people having to scroll.
In Qt5 the palette was introduced in the Control object (part of Qt-
Quick-Controls-2).
In Qt6 this property was moved to the superclass 'Item'.
This means that we no longer need to refer to a control when using a
palette, every single thing in QtQuick is an Item, afterall.
tomFlowee