message: Set presenceInterval to min value if nil.
  If presenceInterval is not present in the config, set it to the minimum allowed
  value instead of having it be nil.
diff: @@ -81,6 +81,9 @@ export class DiscordBot {
  this.bot = client;
  if (!this.config.bridge.disablePresence) {
  + if (!this.config.bridge.presenceInterval) {
  + this.config.bridge.presenceInterval = MIN_PRESENCE_UPDATE_DELAY;
  + }
  this.bot.guilds.forEach((guild) => {
  guild.members.forEach((member) => {
  this.presenceHandler.EnqueueMember(member);
  