* feat(mobile): name the desktop under the Tasks title
Tasks can open on any connected desktop, so the header now shows which
one, in the same subtitle line the host screen uses under its title.
* fix(mobile): reserve the Tasks desktop line so the title does not jump
The subtitle line now holds its height before the host profile is read,
a failed read leaves it blank, and the tests cover a desktop switch
while a read is in flight.
* test(mobile): re-measure the page script sweep after the Tasks subtitle
The Tasks route now shares the host screen's styles, so it emits one
script fewer (77 to 76 at its prefix, 80 to 79 for the tree). Re-swept
every route prefix; the worst route step is now 11.
Jinwoo Hong
cf6a5446a6