When adding Kagi as a custom search engine (kagi.com/https://kagi.com/search?q=%s), searches with multiple words such as kagi.com/search?q=foo%20bar get redirected to kagi.com/search?q=foo+bar.
fastgpt does not do this until the user presses enter on the search box. This means it can be used as a custom search engine, but only for single words. If it did the same thing as kagi, replacing spaces with plusses in the url and redirecting (%20 -> +), it could be used as a custom search engine
Adding fastgpt as a custom search engine at the browser level.
Adding custom bangs to kagi that redirect to fastgpt.
