Implement Splash Screen

[Charan0313]

Issue Title:

Implement Splash Screen

Description:

Introduce a splash screen to improve the initial impression of the app during startup. The splash screen will briefly display the app's logo or name while the app is loading, enhancing its professionalism and user experience.

Tasks:

• Design a visually appealing layout for the splash screen, incorporating the app's logo or name to reflect the brand identity.
• Implement the splash screen using either the SplashScreen package or by customizing the flutter_native_splash package to ensure compatibility with different devices and screen sizes.
• Configure the splash screen to display for an appropriate duration, providing users with enough time to recognize the app's branding before transitioning to the main app screen.
• Test the splash screen functionality across various devices and orientations to verify its effectiveness and responsiveness.
• Document the implementation details of the splash screen, including any customization or adjustments made, for future reference and maintenance purposes.