v0.70.0

What's Changed

• feat(plugins): seam for plugin-owned / chat commands by @mabry1985 in #1334
• feat(web): "Report a bug" link in the hamburger menu by @mabry1985 in #1335
• feat: remove GitHub from core — it's a standalone plugin now by @mabry1985 in #1336
• docs(marketing): point the GitHub plugin directory entry at the standalone repo by @mabry1985 in #1338

Full Changelog: v0.69.0...v0.70.0