remove the useless top button on the sidebar

[Yiyiyimu]

Currently in doc for each part, there would be button linking to itself. For example for apisix, there would be an Apache APISIX on the top.

If users click it, it would direct them to the front page of the same section, so I think we don't need it.
If we do need it, it might be a good idea to change its outlooking from others so people won't expect there is some kind of overview of apisix after clicking this button.

[1502shivam-singh]

As far as I can remember this was the concerning issue for addition of titles #230
But you are right, need to change their style, for a hierarchy and proper contrast.

[Yiyiyimu]

@1502shivam-singh Thank you for the information!

Considering the need to show where we are, maybe we could change the field Docs in navbar to where we are after one option is chosen, keeps the drop-down arrow so people still know they could switch different docs there

[iamayushdas]

@Yiyiyimu check this link is this what you wanted?
https://apisix-website-navigation.netlify.app/