fix: improve password visibility, input-field focus & keyboard flow

[navaneeth0041]

Description

This PR addresses multiple UX issues in the LoginViewMobile page by improving password security, keyboard behavior, and form navigation:

1. Password Field Fixes:

   • Password field was visible by default instead of being obscured (security concern)
   • Now properly starts in a hidden state with a working visibility toggle

2. Keyboard and Focus Improvements:

   • On-screen keyboard was overlapping input fields, making text entry difficult
   • Improved form navigation: pressing 'Next' now moves focus to the next field instead of dismissing the keyboard
   • Ensured smooth scrolling and proper focus handling when switching between fields

Fixes #248

Type of change

• Bug fix (non-breaking change which fixes an issue)

How Has This Been Tested?

The following test scenarios were performed on a mobile device:

1. Password Field Testing:

   • Verified password field starts obscured by default
   • Tested visibility toggle button functionality

2. Keyboard & Focus Testing:

   • Ensured keyboard does not overlap active input fields
   • Verified smooth transition between fields when pressing 'Next'
   • Checked that the keyboard remains open while navigating through form fields

WhatsApp.Video.2025-02-05.at.22.13.14.mp4

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules
• I have checked my code and corrected any misspellings

Maintainer Checklist

• closes Fix password visibility,keyboard overlap issues in LoginViewMobile and input focus issues in LoginViewMobile and #ViewMobile #248
• Tag the PR with the appropriate labels: bug-fix, mobile, ux-improvement