Bug Fixes: Fixed stretched icons throughout the app by replacing all existing image assets

New Feature: Added “Forgot Password” flow so you can reset your password if you forget it

Improvements & Enhancements:
- Trip Details page (with Expenses list) now uses a full-screen scrollable layout for smoother navigation.
- “Add Expense” modal popup now auto-focuses on the Expense Title field for faster data entry.
- Various performance optimizations for faster loading and smoother scrolling