feat: add tags to search

[seflue]

To make the filtering more useful, enritch the search entries withorgmode tags. For usability reasons the tags appear before the headline, because the user might remember the tag before the actual headline. It also helps to remove ambiguities.

[seflue]

@lyz-code we didn't talk about contribution conventions. Is it ok for you, if I just push improvements or do you want to be included as reviewer?

[lyz-code]

Hi @seflue, I absolutely have no idea of what I'm reading so I'd say that you go ahead with whatever you feel needs to be done.

I just did the fork because I wanted something that kind of worked, and I learned the minimal lua to do so.

So with the migration to the nvim-orgmode organization and your energy and knowledge, I'd say that I'd remove myself from the dev team and contribute only by opening issues.

Would that be ok for you?

[seflue]

@lyz-code Sure, I'm absolutely fine with that. 👍