Refactoring keyboardviewcontroller #379

[henrikth93]

Removed some magic numbers and substituted them with constants. Issue: #379

NOTE: There is more to be done here, but this is a first draft.

Contributor checklist

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

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Description

Related issue

• [Refactor] Improve code quality #379

[github-actions]

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[andrewtavis]

Thanks @henrikth93! 🙌🙌🙌🙌🥳🥳