MainActivity: Remove unused code and comments

[ksharma-xyz]

TL;DR

Cleaned up MainActivity by removing unused code and comments

What changed?

• Removed commented-out code related to Koin configuration and Android application components
• Simplified the MainActivity class to only contain essential functionality
• Maintained core functionality with enableEdgeToEdge() and KrailApp() setup

How to test?

1. Launch the application
2. Verify that the app starts and runs normally
3. Confirm that edge-to-edge display still functions correctly

Why make this change?

Improves code maintainability by removing dead code and unused comments that were likely remnants from previous implementations. This makes the codebase cleaner and easier to understand while reducing technical debt.

[ksharma-xyz]

• Core: Refactor app info and version management #446
• MainActivity: Remove unused code and comments #445 👈 (View in Graphite)
• main

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[ksharma-xyz]

Merge activity

• Dec 9, 6:32 AM EST: A user started a stack merge that includes this pull request via Graphite.
• Dec 9, 6:32 AM EST: A user merged this pull request with Graphite.