Colw/more mapState

[colw]

Description:

This is not as scary as it looks. It removes getters that could simply be used directly from the store, and therefore use mapState rather than mapGetters.

There was an unused test file removed, and two unused components were removed too.

The goal is to reduce clutter, and to easily know the difference between what is stored and what is calculated.

Thank you! 🚀

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For contributor:

• Added changes entries. Run yarn changelog for a guided process.
• Reviewed Files changed in the github PR explorer
• Attach screenshots of the UI components on the PR description (if applicable)
• Scope of work approved for big PRs

For reviewer:

• Manually tested the changes on the UI