disable hardware accelleration in Obsidian

Helpful if the Mac version looks glitchy. It's a bug with Chromium's hardware acceleration. Can also be fixed by a reboot (have you tried turning it off and on again?)

/Applications/Obsidian.app/Contents/MacOS/Obsidian --disable-gpu

See https://discord.com/channels/686053708261228577/694233507500916796/765383247148220506