mkdocs-material-9.2.0b1

Note – This is a beta release, so please test thoroughly before deploying to production.

• Added support for customizing (code) annotation icons – f64d865
• Added focus outline to admonitions and details – 3e34f6c
• Removed necessity for Array.flat and Array.flatMap polyfill – b37c668
• Fixed announcement bar button being visible when JavaScript is not available – 320c852
• Automatically download ResizeObserver polyfill when necessary – 54bef7b