Twenty Seventeen: Recheck blockquote position when widgets change in the Customizer

[R1shabh-Gupta]

Fixes an issue where a right- or left-aligned blockquote, including the Quote block, can be overlapped by sidebar widget content when widgets are added, updated, or removed in the Customizer.

belowEntryMetaClass() in assets/js/global.js only runs on page load and window resize. Because of this, it does not recalculate when widgets are changed through Customizer selective refresh.

This change listens to the sidebar-updated event for the Blog Sidebar (sidebar-1) and reruns the existing check whenever its widgets are updated.

Trac ticket: https://core.trac.wordpress.org/ticket/46055

Use of AI Tools

AI assistance: Yes
Tool(s): Claude Code
Model(s): Claude Sonnet 5
Used for: Investigating the issue, implementing the fix, and verifying it locally. I reviewed the implementation before finalizing it.

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[github-actions]

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