feat: no search entries found page (#5372)

[JennySimen]

Closes #5372

This PR creates a new and better search result page when the is no seach found.

Steps to view work

1. Go to the registry page /ecosystem/registry
2. Enter a word in the search bar which does not exist (e.g juice)
3. View the new designed user interface

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: JennySimen / name: Jennifer Yakam (a7783ee, 3a21706)

[svrnm]

this looks very good, thank you! One comment around the image, otherwise 👍

[JennySimen]

@svrnm Thank you very much for the feedback.

[svrnm]

@JennySimen we are currently discussion #5681 to enable the import of the 3rd party image, after this being resolved we should be able to merge your PR

[JennySimen]

Thank you, looking forward to having the pr merged.

[svrnm]

@JennySimen apologies for the delay and for going back and forth. I agree with @chalin's point in this comment (#5681 (comment)) that we should avoid adding the overhead of an image that needs attribution and a license reference in our code. It's much easier in docs/blog text since we simply can put a copy right notice below the image.

I copy the relevant part of the discussion:

Stepping back a bit regarding the original PR: have we considered using just a Font Awesome icon instead, or a completely-free-and-no-license-hassle stock image source?

the font awesome icons might be too small/minimalistic, I like the idea of the image, of course someone with a telescope not finding what they are looking for would be my preferred image. We could also use a variant of

https://opentelemetry.io/homepage-hero-as-background_hu13043826424429285166.jpg

WDYT?