fix tts (+1 squashed commits)

Squashed commits:

[ae02f266] fix tts

Author: LostRuins

klite.embd

@@ -3285,7 +3285,7 @@ Current version: 107
     const a1111_options_endpoint = "/sdapi/v1/options";
     const a1111_txt2img_endpoint = "/sdapi/v1/txt2img";
 
-	const xtts_gen_endpoint = "/tts_to_audio";
+	const xtts_gen_endpoint = "/tts_to_audio/";
 	const xtts_voices_endpoint = "/speakers_list";
 
 	//support for quick news updates