Add alias for Shell Side Arm (#7524)
Add alias for Shell Side Arm (#7524)

* Add alias for Shell Side Arm

* Also add ssa as an alias
Zarel/Pokemon-Showdown,xfix/Pokemon-Showdown,svivian/Pokemon-Showdown,svivian/Pokemon-Showdown,xfix/Pokemon-Showdown,sirDonovan/Pokemon-Showdown,xfix/Pokemon-Showdown,Zarel/Pokemon-Showdown,xfix/Pokemon-Showdown,svivian/Pokemon-Showdown,Zarel/Pokemon-Showdown,xfix/Pokemon-Showdown,svivian/Pokemon-Showdown,sirDonovan/Pokemon-Showdown,sirDonovan/Pokemon-Showdown,svivian/Pokemon-Showdown