Twitter will now allow people to tip their favorite content creators with bitcoin and will also launch a fund to pay some users who host audio chat rooms on its Spaces feature, the company said on Thursday.The company also said it will test new ways to help users have a safer experience on Twitter, such as warning when people are entering a “heated” conversation, or letting them leave tweet threads they no longer want to be part of.The product announcements are the latest in Twitter’s effort to compete with rival…