docserver - Also include the CSS for skottie-inline-sk.
docserver - Also include the CSS for skottie-inline-sk.

Bug: skia:
Change-Id: Ib9bd03f7bc5143465742ce6b18abfa772e2fbe87
Reviewed-on: https://skia-review.googlesource.com/c/182140
Auto-Submit: Joe Gregorio <b9cf2471ff6d33504cafe8e6f356b732b2cadced@google.com>
Reviewed-by: Kevin Lubick <7cdab2cfab351f23814786ba39716e90eed69047@google.com>
Commit-Queue: Kevin Lubick <7cdab2cfab351f23814786ba39716e90eed69047@google.com>

google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot