labelstud.io website navigation issue

I couldn't find a place to inform the webmaster of the labelstud.io website of a major issue with navigation. Hopefully, someone can pass this along.

When attempting to read documentation on the labelstud.io website it is not possible to use up and down arrow navigation or to use page up and page down navigation. Pressing these keys in both Edge and Firefox results in the focus being brought up to the "search docs" text entry box.

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Please fix this terrible navigation in the website UI.