API: Unescape search suggestions (#4218)

Previously, the suggestion were HTML encoded. This PR fixes that.

src/invidious/routes/api/v1/search.cr

@@ -32,11 +32,14 @@ module Invidious::Routes::API::V1::Search
 
     begin
       client = HTTP::Client.new("suggestqueries-clients6.youtube.com")
-      url = "/complete/search?client=youtube&hl=en&gl=#{region}&q=#{URI.encode_www_form(query)}&xssi=t&gs_ri=youtube&ds=yt"
+      client.before_request { |r| add_yt_headers(r) }
+
+      url = "/complete/search?client=youtube&hl=en&gl=#{region}&q=#{URI.encode_www_form(query)}&gs_ri=youtube&ds=yt"
 
       response = client.get(url).body
+      client.close
 
-      body = JSON.parse(response[5..-1]).as_a
+      body = JSON.parse(response[19..-2]).as_a
       suggestions = body[1].as_a[0..-2]
 
       JSON.build do |json|