Advanced navigation and launch screen

[Zoidt]

Pull Request Description

What task/requirement is this resolving (link): https://github.com/aj-govil/AppDevII-FocusApp/issues/42

Resolution description: Meet requirements for implementation of advanced states (specifically a landing screen)

Level of Effort (Update from Estimate): 2/10

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Code Checklist

• [ ] tested
• [ ] linted
• [ ] reviewed