This PR moves current path handling from canvas paint thread to script's
`CanvasState`. Because we used manual impl for arcto and some prechecks
for early fail before sending IPC we also needed to fix some bugs in
Path impl.
Testing: Existing WPT tests
work towards #38022
try run: https://github.com/sagudev/servo/actions/runs/16316090028
Signed-off-by: sagudev <16504129+sagudev@users.noreply.github.com>
a070f24450