Support external transcription providers (#909)

collector/index.js

collector/package.json

collector/processSingleFile/convert/asAudio.js

collector/processSingleFile/index.js

collector/utils/WhisperProviders/OpenAiWhisper.js

collector/utils/WhisperProviders/localWhisper.js

collector/yarn.lock

docker/.env.example

frontend/src/App.jsx

frontend/src/components/SettingsSidebar/index.jsx

...anscriptionSelection/NativeTranscriptionOptions/index.jsx

...components/TranscriptionSelection/OpenAiOptions/index.jsx

...c/pages/GeneralSettings/TranscriptionPreference/index.jsx

frontend/src/utils/paths.js

server/.env.example

server/models/systemSettings.js

server/storage/models/README.md

server/utils/collectorApi/index.js

server/utils/helpers/updateENV.js