chore: update Code to 1.70 (#5422)

* Update upstream Code to 1.70

* Update CSP hashes

* Update comment on remote authority

Also remove it from script-src since it is invalid anyway.

* Use absolute path for disable download patch

Just to keep it consistent with the other imports.  We initially added
the patch like this so it was not part of the upgrade but might as well
fix it now.

* Fix inability to change language while code-server is running

Co-authored-by: Asher <ash@coder.com>