Backport PR #27397 on branch v3.8.x (SpanSelector widget: Improve doc for `extents`)#27446

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story645 merged 1 commit intomatplotlib:v3.8.xfrom

meeseeksmachine:auto-backport-of-pr-27397-on-v3.8.x

Dec 5, 2023

Commits on Dec 5, 2023

Backport PR #27397: SpanSelector widget: Improve doc for `extents`

story645
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