Update changelog

CHANGELOG.md

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 # Changelog
 
+## 2.0.0-beta.11
+
+- Added button group component
+- Fixed icon button alignment
+- Fixed a bug where focus visible observer wasn't removed from `sl-details`
+- Replaced the deprecated `componentDidUnload` lifecycle method with `disconnectedCallback` to prevent issues with frameworks
+
 ## 2.0.0-beta.10
 
-- Added button group component
 - Added community page to the docs
 - Fixed a bug where many components would erroneously receive an `id` when using the custom elements bundle
 - Fixed a bug where tab groups weren't scrollable with the mouse
-- Fixed icon button alignment
 
 ## 2.0.0-beta.9