This is to head towards removing the LauncherCore dependency inside of
Account (and by extension, AccountManager.) This function should really
belong here anyway, since it uses a lot of functionality from
LauncherCore.
This improves the flow drastically, first by porting it from MobileForm
to FormCard. Next, it fixes some of the annoying bugs such as the
profile not switching properly when adding a new profile. Selecting an
existing game path is now possible, and it's less likely you can enter
in invalid account credentials. The overall look and behavior of some
of the pages is improved.
Giant commit overhauling the interface to use KDE's Kirigami framework,
which is based on Qt Quick. The logic is all but rewritten, allowing
accounts to be separate from profiles.
