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.
This shows all wallets and wallet details.
Additionally, this moves the AccountTypeLabel out of the desktop page to
be reusable. Not so much because its hard, but because they have
translations and we'd better push shared translations into the common
translation unit as opposed to duplicating it.
The LabelWithClipboard now has as default context-menu-item text "Copy"
instead of "Copy Address".
tomFlowee