Add new /channel/:ucid/search endpoint

src/invidious.cr

@@ -316,8 +316,9 @@ Invidious::Routing.get "/channel/:ucid/playlists", Invidious::Routes::Channels,
 Invidious::Routing.get "/channel/:ucid/community", Invidious::Routes::Channels, :community
 Invidious::Routing.get "/channel/:ucid/channels", Invidious::Routes::Channels, :channels
 Invidious::Routing.get "/channel/:ucid/about", Invidious::Routes::Channels, :about
+Invidious::Routing.get "/channel/:ucid/search", Invidious::Routes::Channels, :search
 
-["", "/home", "/videos", "/playlists", "/community", "/channels", "/about"].each do |path|
+["", "/home", "/videos", "/playlists", "/community", "/channels", "/about", "/search"].each do |path|
   Invidious::Routing.get "/c/:user#{path}", Invidious::Routes::Channels, :brand_redirect
 end
 

src/invidious/routes/channels.cr

@@ -194,6 +194,10 @@ class Invidious::Routes::Channels < Invidious::Routes::BaseRoute
     env.redirect url
   end
 
+  def search(env)
+    return env.redirect "/search?#{env.params.query}&channel=#{env.params.url["ucid"]}"
+  end
+
   private def fetch_basic_information(env)
     locale = LOCALES[env.get("preferences").as(Preferences).locale]?