text processing checkbox to strip cloze tags, disbale espeakng if not installed

fix errors with espeakng

error handling changes for Azure and ESpeakNg

re-introduce old FPTAI service

fix ElevenLabs language support

elevenlabs v3 support, elevenlabs language_code support, fpt.ai update

fix naver papago

fix issue with sound previews

fix youdao voice options

minor enhancement to trial workflow