update member info

[ix0rai]

• fixes #235
• @OroArmor tibs is still on the admin board team, making the website show 4 admin board members. pls fix!
• updates all members to use the new discord handles

adds:

• @anonymous123-code

removes:

• lambda
• octal
• pepper
• mazzie
• ennui
• @AlsoSylv

---

See preview on Cloudflare Pages: https://preview-239.quiltmc-org.pages.dev

[ix0rai]

:+1: thanks!