Necessary backend for issue #673

[Bisgaard01]

Description

Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context. List any dependencies that are required for this change.

Added ShowPopup column to Setting table. Added ef core migration to enable upgrading/downgrading database to/from this version.

Fixes part of #673

Type of change

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• [x] New feature (non-breaking change which adds functionality)
• [x] This change requires a documentation update

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

Development Configuration Type "flutter --version" and "dart --version" in your CMD to check versions.

*ASP.NET Core Runtime 6.0.9

Checklist:

• [x] My code follows the style guidelines of this project
• [x] I have performed a self-review of my own code
• [x] I have commented my code, particularly in hard-to-understand areas, if necessary
• [x] I have made corresponding changes to the documentation, if necessary
• [x] My changes generate no new warnings
• [x] I have added tests that prove my fix is effective or that my feature works, if necessary
• [x] New and existing unit tests pass locally with my changes
• [x] Any dependent changes have been merged and published in downstream modules
• [ ] I have Acceptance Tested this on an iOS device
• [ ] I have Acceptance Tested this on an Android device