Performance Enhancements: Widgets

[parthshindee]

Time Tracking: MA-207

Utilizing stateless widgets and const variables can significantly enhance rendering efficiency.

This is done when:

• Determining which Stateful Widgets can be refactored to use Stateless Widgets instead.
• Reducing rebuilds by using Stateless widgets where possible
• Using const constructors to ensure that widgets are created once and reused, reducing the overhead
• Code with stateless widgets and constants is cleaner and easier to read

This issue is part of the Flutter Mobile App Performance Improvements Proposal