New search engine

A new search engine is now running on the forum. It is quite sophisticated and is based on a large language model. More information here: https://github.com/stanford-futuredata/ColBERT
The language model allows the engine to better "understand" the query and not just find the specific terms. This is not ChatGPT nor Google, but based on my tests it provides better results than the previous search engine, especially for longer queries.
I've also tuned it a bit differently and made it less focused on tutorials.

The previous search engine, which was quite good and served us well, is still there and will be used in case of failures.
Feedback is welcome. This is the first version and I'm sure that there are many ways to further improve it.

You can see whether it is the new search engine running with the small label at the bottom.

I had nothing to search for, I tried almost randomly.
The result seems very good to me, although I can't compare it to the base engine.

Since this new search engine now allows us to type in a longer query and not just short terms, would it be possible to add maybe a second magnifier lens icon next to the current magnifier lens icon with maybe a "+" symbol added to it so its visually different and allow us to click on it and it will open up an advanced search window where the query textbox is much bigger so we can see our full prompt instead of that tiny textbox in the forum header.

Note that you can add the search engine to the browser directly. It is very convenient. Set a shortcut letter and then make the search directly. I use it all the time.