Fix button width and text centering

[henrikth93]

This commit will make all the buttons the same size, as well as centering the button text.

Contributor checklist

• [] This pull request is on a separate branch and not the main branch

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Description

Related issue

• Match GUI UI with Figma designs #23

[github-actions]

Thank you for the pull request! ❤️

The Scribe-Desktop team will do our best to address your contribution as soon as we can. If you're not already a member of our public Matrix community, please consider joining! We'd suggest that you use the Element client as well as Element X for a mobile app, and definitely join the General and Desktop rooms once you're in. Also consider attending our bi-weekly Saturday dev syncs. It'd be great to meet you 😊

[github-actions]

Maintainer Checklist

The following is a checklist for maintainers to make sure this process goes as well as possible. Feel free to address the points below yourself in further commits if you realize that actions are needed :)

• The CHANGELOG has been updated with a description of the changes for the upcoming release and the corresponding issue (if necessary)

[andrewtavis]

Looking good, @henrikth93! I'll mark equal width buttons off the list in the issue 😊 Nice to have some progress here! 🚀