refactor: make Platforms enum singular

[crnkovic]

Summary

https://app.clickup.com/t/862khr43x

This PR renames the Platforms enum to Platform and renames its platforms method to all, so there's no weird stuff like Platforms::platforms()

Also, this enum and TokenGuid enum are never used in the UI so there's no reason for them have TS version generated.

Checklist

• I checked my UI changes against the design and there are no notable differences
• I checked my UI changes for any responsiveness issues
• I checked my (code) changes for obvious issues, debug statements and commented code
• I opened a corresponding card on Clickup for any remaining TODOs in my code
• I added a short description on how to test this PR (if necessary)
• I added a storybook entry for the component that was added (if necessary)
• Documentation (if necessary)
• Tests (if necessary)
• Ready to be merged