Include React itself in the list of shims (#7453)
Include React itself in the list of shims (#7453)

Without this we end up bundling all of the isomorphic React into
the DOM bundle. This was fixed in #7168 too but I'll just do an
early fix to ensure that #7168 is purely an npm change.
(cherry picked from commit ca9167c20270613e87f969292e55aaffefbed9a2)

with-git/react,with-git/react,with-git/react,with-git/react,with-git/react,with-git/react,with-git/react