3.1.2.dev2: Nightly Development Release

What's Changed

Bug Fixes 🐞

• Fixes the arguments for the url generation in BaseWorker by @sam-phinizy in #15982

Integrations & Dependencies 🤝

• adopt async_dispatch for slack collection by @zzstoatzz in #15973

Development & Tidiness 🧹

• Add sidebar to v2 UI by @desertaxle in #15925
• [UI v2] Add ability to create new variables by @desertaxle in #15962

Uncategorized

• Fixes the worker url slug by @sam-phinizy in #15964
• Fix the key for worker metadata: it's is just "metadata" by @abrookins in #15965
• Add in ability to pass additional formatting kwargs to url_for by @sam-phinizy in #15974
• clarify state hook docs by @zzstoatzz in #15977

Full Changelog: 3.1.2.dev1...3.1.2.dev2