feat: make advanced settings toggle more intuitive/functional

[conventoangelo]

This pull request introduces a new feature to enable or disable advanced settings in the application, along with various code cleanups and improvements. The most important changes include adding the enableAdvancedSettings variable, updating the preferences screen to reflect this new setting, and removing debug print statements across multiple files.

New Feature: Advanced Settings

• lib/app.dart: Added enableAdvancedSettings and previousShowAltLayout variables, and updated related methods to handle the new setting. [1] [2] [3] [4] [5]
• lib/screens/preferences_screen.dart: Replaced showAdvancedSettings with enableAdvancedSettings and updated the preferences screen to handle this new setting. [1] [2] [3] [4] [5] [6]

Code Cleanup

• Removed unnecessary debug print statements from various files to clean up the codebase. [1] [2] [3] [4]

Minor Improvements

• lib/main.dart: Removed an unnecessary comment in the main function.
• lib/app.dart: Removed redundant debug print statements in the _handleStartupToggle method and other parts of the file. [1] [2] [3]

[conventoangelo]

Creating another PR due to release-please disaster!