Description:
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This is more of a website feature request. On the newly updated 
documentation, it's too easy to accidentally collapse sections by 
clicking the header. This often happens to me if I'm clicking to refocus 
a window in the background, for example, and happen to hit the header.

Reproduce code:
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No relevant code

Expected result:
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From a UI point of view, I think it would be better to have a small icon 
or link in the header trigger the collapse/expand action.

Actual result:
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Not really applicable.