add toggle for API Key

[aishwarya-mali]

Proposed changes

Closes #8
PR is to add toggle for API Key Visibility

Types of changes

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• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
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Checklist

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Further comments

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[BekahHW]

This is awesome! Thank you so much.