v8.10.0

What's Changed

• Get linting green on release-8.x branch by @maxkadel in #3574
• Split ci workflows by @maxkadel in #3578
• [8.x] Backport "Use the released version of i18n-rails" by @jcoyne in #3575
• [Backport 8.x] Permit markup on prev/next session context buttons by @jcoyne in #3584

Full Changelog: v8.9.0...v8.10.0