desktop_aura: Track upstream changes in DWTHWayland
wayland: Add more useful warnings about not implemented code
desktop_aura: Treat TYPE_BUBBLE similar as TYPE_WINDOW

App Launcher is one of the few bubble types I've seen and seems that it pretty
much imitates the window type behavior (toplevel). Treat these types equally
for now, therefore.

TEST=./out/Debug/chrome --no-sandbox --user-data-dir=/tmp/chrome --show-app-list
BUG=#197