[CSS] Apply offset-position to ray()

[bsmth]

Acceptance Criteria

• The listed features are documented sufficiently on MDN
• BCD is updated
• NA Interactive example and data repos are updated if appropriate
• The content has been reviewed as needed

For folks helping with Firefox related documentation

• Set bugs to dev-doc-complete
• NA Add entry to Firefox release notes if feature is enabled in release
• Add entry to Firefox experimental features page if feature is not yet enabled in release

Features to document

offset-position should be applied to ray() function.

Related Gecko bugs

• https://bugzilla.mozilla.org/show_bug.cgi?id=1820070

Other

• Check content open issues to see if any pertain to the subject matter. If there are any that can be closed because of the work, do so. If there are any that can be fixed relatively quickly because of the knowledge from completing this issue and you have time, feel free to go ahead and fix them.
• Check if glossary updates are required for the feature you're documenting - whether an existing term needs to be updated or a new term should be added.
• Check if BCD update means that content pages need to have experimental markup removed or deprecated markup added (front matter tags and macros).

[dipikabh]

• New optional component added to the syntax: [at <position>] - https://drafts.fxtf.org/motion-1/#funcdef-ray
• Related bugs:
  • [motion-1] Use the correct containing box for ray() (https://bugzilla.mozilla.org/show_bug.cgi?id=1581237)
  • [motion-1] Support " || " for offset-path (https://bugzilla.mozilla.org/show_bug.cgi?id=1598156). There's a doc issue tracker for this one: [CSS] (motion-1) Support <basic-shape> || <coord-box> for offset-path #27747

Tasks for updating ray() docs:

• Content update: docs(css): Fx116 - syntax updates for offset-path and ray() #28348
• Release notes update: docs(relnotes): FX116 release notes offset-path and ray() #28383
• BCD update: CSS ray() function: Add "at <position>" feature row for Firefox116 browser-compat-data#20475

[dipikabh]

Closing this as all the related tasks have been completed