Change the docs style with navigation tabs

[DomInvivo]

The old docs API is too messy with too many things on the left.

Most modern libraries use tabs at the top to organize, making the API a lot easier to follow.

Checklist:

• [ ] Was this PR discussed in a issue? It is recommended to first discuss a new feature into a GitHub issue before opening a PR.
  • No, it's a single line of code
• [ ] Add tests to cover the fixed bug(s) or the new introduced feature(s) (if appropriate).
  • Not needed
• [ ] Update the API documentation is a new function is added or an existing one is deleted.
  • Not needed
• [x] Added a news entry.

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[codecov[bot]]

Codecov Report

Merging #184 (13068da) into main (e07e7c8) will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #184   +/-   ##
=======================================
  Coverage   91.66%   91.66%           
=======================================
  Files          46       46           
  Lines        3661     3661           
=======================================
  Hits         3356     3356           
  Misses        305      305           

Flag	Coverage Δ
unittests	91.66% <ø> (ø)

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[hadim]

Nice catch Dom. I like it!

[DomInvivo]

Credits go to @shenyangHuang