Update README.md to Reflect Recent Project Changes

[breadoncee]

Description:

The current README.md file is outdated and does not reflect the recent architectural and feature changes in the app. It should be updated to include information about the new routing system (GoRouter), state management migration to Riverpod, and the introduction of the Gaps utility for spacing. Additionally, the README should provide clear setup instructions, feature descriptions, and any new dependencies.

Objectives:

• Update the State Management section to reflect the migration from Provider to Riverpod.
• Add a Routing section to describe how GoRouter is set up and used in the app.
• Document the Gaps Utility for compile-time spacing and its purpose in the app.
• Ensure the Installation and Getting Started sections are up-to-date with any new dependencies or commands.
• Revise the Features section to list all current features accurately.
• Add examples or code snippets where necessary to illustrate key concepts like state management, routing, and UI utilities.
• Ensure the README is structured in a clear and concise manner for easy onboarding of new contributors.

Additional Info:

• Make sure to link any relevant documentation or resources related to Riverpod, GoRouter, and other packages used.
• Include badges for build status, version, and any other useful metadata if applicable.