Add `outlineOffset` to the CSSProperties externs.
Add `outlineOffset` to the CSSProperties externs.

PiperOrigin-RevId: 420788714

monetate/closure-compiler,google/closure-compiler,google/closure-compiler,monetate/closure-compiler,ChadKillingsworth/closure-compiler,nawawi/closure-compiler,ChadKillingsworth/closure-compiler,monetate/closure-compiler,google/closure-compiler,nawawi/closure-compiler,ChadKillingsworth/closure-compiler,nawawi/closure-compiler,ChadKillingsworth/closure-compiler,monetate/closure-compiler,google/closure-compiler,nawawi/closure-compiler