v5.28.0-beta.1

• Signal Desktop is now optimized for Apple's M1 chip which is used in their newer computers. If you're on one of those new-fangled devices, the app should be much snappier. If you're not, give a warm welcome to the users that are. Huge thanks to Dennis Ameling for his hard work here!
• New year, new initial setup screen. We've redesigned the initial setup screens just in time for 2022.