[API] Improve sorting for handler search

[Snailedlt]

When doing a handler search, the result should be sorted by relevance. For example, if you're searching for "Borderlands" then "Borderlands" should appear first, followed by the 2nd most relevant search.

Currently when searching for "Borderlands" the result shows "Borderlands" as the 4th result.
relevant endpoint.
The image below shows the result from searching for "borderlands" with the splitscreen.me discord bot:

url: "api/v1/handlers/:search_text",
httpMethod: "get"