feat(tools): added speech to text with openai whisper, elevenlabs, and deepgram (#2068)

* feat(tools): added speech to text with openai whisper, elevenlabs, and deepgram

* added new file icons, implemented ffmpeg

* updated docs

* revert environment

apps/docs/components/ui/icon-mapping.ts

@@ -8,6 +8,7 @@ import {
   ApolloIcon,
   ArxivIcon,
   AsanaIcon,
+  AudioWaveformIcon,
   BrainIcon,
   BrowserUseIcon,
   CalendlyIcon,
@@ -100,6 +101,7 @@ export const blockTypeToIconMap: Record<string, IconComponent> = {
   telegram: TelegramIcon,
   tavily: TavilyIcon,
   supabase: SupabaseIcon,
+  stt: AudioWaveformIcon,
   stripe: StripeIcon,
   stagehand_agent: StagehandIcon,
   stagehand: StagehandIcon,