test: Split out "disabled Create VM button" test
test: Split out "disabled Create VM button" test

This is currently failing a lot, and does not share any setup with
testCreate(). So split it out to make it easier to debug.

Closes #13783

moraleslazaro/cockpit,deryni/cockpit,cockpit-project/cockpit,garrett/cockpit,mvollmer/cockpit,cockpituous/cockpit,deryni/cockpit,deryni/cockpit,deryni/cockpit,cockpituous/cockpit,mvollmer/cockpit,mvollmer/cockpit,moraleslazaro/cockpit,garrett/cockpit,cockpit-project/cockpit,martinpitt/cockpit,moraleslazaro/cockpit,cockpituous/cockpit,moraleslazaro/cockpit,garrett/cockpit,deryni/cockpit,martinpitt/cockpit,moraleslazaro/cockpit,moraleslazaro/cockpit,martinpitt/cockpit,moraleslazaro/cockpit,cockpit-project/cockpit,cockpit-project/cockpit,mvollmer/cockpit,cockpituous/cockpit,deryni/cockpit,garrett/cockpit,mvollmer/cockpit,martinpitt/cockpit,martinpitt/cockpit,deryni/cockpit,cockpituous/cockpit,cockpituous/cockpit,cockpit-project/cockpit,garrett/cockpit