Feature Request Title Add Voice Input to Currency Converter

[manyasharma1008]

Enhance the “Currency Converter” by allowing users to speak currency names (using speech_recognition module). #11

[github-actions]

👋 @manyasharma1008 👋

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[namanbansal121294]

Hi Manya, I am new to GitHub and honestly don't know much about contribution, but if you tell me where I should start, then I will