feature: fixes splash screen loading

[comountainclimber]

Description

Previously the client splash screen => main menu loading was a a little wonky as the user would see first the grey window then the splash screen animation then the main window. This PR smooths out that process.

Motivation and Context

Makes the nOS client UX of loading the app much cleaner.

How Has This Been Tested?

Manual tested locally.

Screenshots (if appropriate)

BEFORE:

AFTER:

Types of changes

• Chore (tests, refactors, and fixes)
• New feature (adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist

• I have read the CONTRIBUTING guidelines and confirm that my code follows the code style of this project.
• Tests for the changes have been added (for bug fixes/features)

Documentation

• Docs need to be added/updated (for bug fixes/features)

Closing issues

Fixes #

[codecov]

Codecov Report

Merging #809 into develop will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           develop     #809   +/-   ##
========================================
  Coverage    54.17%   54.17%           
========================================
  Files          225      225           
  Lines         1914     1914           
  Branches       264      264           
========================================
  Hits          1037     1037           
  Misses         725      725           
  Partials       152      152

[DalderupMaurice]

LGTM - Thanks! 😄