Rename transcript() to get_transcript() in YT API

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

@@ -89,7 +89,7 @@ module Invidious::Routes::API::V1::Videos
 
     if CONFIG.use_innertube_for_captions
       params = Invidious::Videos::Transcript.generate_param(id, caption.language_code, caption.auto_generated)
-      initial_data = YoutubeAPI.transcript(params.to_s)
+      initial_data = YoutubeAPI.get_transcript(params)
 
       webvtt = Invidious::Videos::Transcript.convert_transcripts_to_vtt(initial_data, caption.language_code)
     else

src/invidious/yt_backend/youtube_api.cr

@@ -558,7 +558,7 @@ module YoutubeAPI
   end
 
   ####################################################################
-  # transcript(params)
+  # get_transcript(params, client_config?)
   #
   # Requests the youtubei/v1/get_transcript endpoint with the required headers
   # and POST data in order to get a JSON reply.
@@ -569,7 +569,7 @@ module YoutubeAPI
   # `struct ClientConfig` above for more details).
   #
 
-  def transcript(
+  def get_transcript(
     params : String,
     client_config : ClientConfig | Nil = nil
   ) : Hash(String, JSON::Any)