feat: loading screen

[Novanglus96]

Description

Please include a summary of the change and the issue(s) it fixes. Include relevant motivation and context. List any dependencies that are required for this change.

Fixes # (issue)

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Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update

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Checklist:

• My code follows the style guidelines of this project.
• I have performed a self-review of my code.
• I have commented my code, particularly in hard-to-understand areas.
• I have added tests that prove my fix is effective or that my feature works.
• New and existing unit tests pass locally with my changes.

[Novanglus96]

🎉 This PR is included in version 1.2.0-rc.1 🎉

The release is available on GitHub release

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