*Describe the changes that this pull request makes here. This will be
the commit message.*
Move stream file to script/dom/stream
part of https://github.com/servo/servo/issues/38901
Testing: *Describe how this pull request is tested or why it doesn't
require tests*
Fixes: *Link to an issue this pull requests fixes or remove this line if
there is no issue*
---------
Signed-off-by: hyuraku <32809703+hyuraku@users.noreply.github.com>
Signed-off-by: Taym Haddadi <haddadi.taym@gmail.com>
Co-authored-by: Taym Haddadi <haddadi.taym@gmail.com>
