refactor(theme): do not render search bar when excludeFromSearchIndex is true

[emmenko]

Fixes #149

[vercel]

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[nkuehn]

Thanks for the implementation, clean and straightforward.

I suggest to set up the tests in a way that leaves the search box in the visual regression tests. Now that component is not "VRTed" any more at all (and we'll have the same issue for the top nav once that's there.)

Could require separate configuration of the search bar visibility unless you can find a way to let the tests - or a part of them - run in a mode that is "Indexed" without deploying the test site as indexed.

[emmenko]

Yeah ok, will take a look at it tomorrow

[emmenko]

Alright, it should be good to go now.