Search: wrong link when including results from different projects

[stsewd]

Our search syntax allows including results from several no-related projects, which means each result will have a different URL that doesn't match the current domain. For example, in https://docs.beeware.org/en/latest/ search project:docs test and click on the result that says "from project docs", you'll get a 404 as it uses the relative path instead of an absolute URL.

addons/src/search.js

Line 269 in 1e9a3d8

href="${result.path}"

In the previous implementation for search, we covered this use case by checking if the result belongs to the current project or not, and if not, we used the full URL instead of the path.

https://github.com/readthedocs/readthedocs-sphinx-search/blob/aa5c8d70c0719475db6ae082eb7cf017027fc1a7/sphinx_search/static/js/rtd_sphinx_search.js#L269-L279