SearX/SearXNG support

[Fivefold]

TODO: implement support for SearX/SearXNG

I looked at the match patterns again and a compromise solution might be to match something like https://*/search?* and https://*/search?*. This would match any URL with a path ending in search (and optional a query string. Examples: https://mysite.com/search https://mysite.com/search?s=mysearchterm

• https://github.com/Fivefold/linkding-injector/issues/5#issuecomment-1326861978 SearXNG which is a fork of SearX supports the /search and you can find a list of public instances here to test. https://searx.space/

• https://github.com/Fivefold/linkding-injector/issues/5#issuecomment-1345470522

[Fivefold]

Experimental support for SearX/SearXNG added in v1.3.0. Please read this if you have problems.