Lottery improvements (#5736)
Lottery improvements (#5736)

  - Fix typos in help command
  - Link lottery in declare message
  - Don't delete lotteries when ended
  - Remove useless if-cond checks

svivian/Pokemon-Showdown,svivian/Pokemon-Showdown,Zarel/Pokemon-Showdown,Zarel/Pokemon-Showdown,urkerab/Pokemon-Showdown,Enigami/Pokemon-Showdown,xfix/Pokemon-Showdown,Zarel/Pokemon-Showdown,Enigami/Pokemon-Showdown,svivian/Pokemon-Showdown,QuiteQuiet/Pokemon-Showdown,xfix/Pokemon-Showdown,sirDonovan/Pokemon-Showdown,QuiteQuiet/Pokemon-Showdown,AustinXII/Pokemon-Showdown,svivian/Pokemon-Showdown,sirDonovan/Pokemon-Showdown,urkerab/Pokemon-Showdown,jumbowhales/Pokemon-Showdown,xfix/Pokemon-Showdown,jumbowhales/Pokemon-Showdown,AustinXII/Pokemon-Showdown,QuiteQuiet/Pokemon-Showdown,AustinXII/Pokemon-Showdown,urkerab/Pokemon-Showdown,jumbowhales/Pokemon-Showdown,Enigami/Pokemon-Showdown,svivian/Pokemon-Showdown,xfix/Pokemon-Showdown,sirDonovan/Pokemon-Showdown,Enigami/Pokemon-Showdown,xfix/Pokemon-Showdown