Backport PR #25977 on branch v3.7.1-doc ([Doc]: Fix navigation sidebar for Animation examples) - #25981

Backport PR #25977 on branch v3.7.1-doc ([Doc]: Fix navigation sidebar for Animation examples)#25981

QuLogic merged 1 commit into

matplotlib:v3.7.1-docmatplotlib/matplotlib:v3.7.1-docfrom

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