support fetching elevenlabs models by api-key (#383)

lib/utils/speech-utils.js

@@ -825,6 +825,13 @@ async function getLanguagesVoicesForElevenlabs(credential) {
     const [langResp, voiceResp] = await Promise.all([get('/v1/models'), get('/v1/voices')]);
 
     const model = langResp.find((m) => m.model_id === credential.model_id);
+    const models = langResp.map((m) => {
+      return {
+        value: m.model_id,
+        name: m.name
+      };
+    }).sort((a, b) => a.name.localeCompare(b.name));
+
     const languages = model ? model.languages.map((l) => {
       return {
         value: l.language_id,
@@ -856,7 +863,7 @@ async function getLanguagesVoicesForElevenlabs(credential) {
         language.voices = voices;
       }
     }
-    return tranform(languages, undefined, TtsModelElevenLabs);
+    return tranform(languages, undefined, models);
   } else {
     const voices = TtsElevenlabsLanguagesVoices[0].voices;
     for (const language of TtsElevenlabsLanguagesVoices) {