fix: add secondary button outline

[shahin-hq]

Summary

Closes: https://app.clickup.com/t/86dt3c99x

• adds a border for the cancel button
• adds an outline for the focus state for all buttons
• ensures the fee switch input has the same focus state with buttons
• adds a translation string for the Fee label

Checklist

• I checked the basic interactions between demo and extension, making sure wallet selection works
• I checked my UI changes against the design and there are no notable differences, including responsiveness
• 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)
• Ready to be merged

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Name	Status	Preview	Comments	Updated (UTC)
arkconnect-demo	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Mar 29, 2024 0:26am

[ItsANameToo]

the cancel button is missing a hover state in light mode