248 password visiblity keyboard overlap issue

[navaneeth0041]

Description

This PR addresses two UX issues in the LoginViewMobile page:

1. Password field was showing characters by default instead of being obscured, which is a security concern
2. On-screen keyboard was overlapping with input fields, making text entry difficult

The changes implement proper password field behavior and improve form accessibility on mobile devices.

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 Interaction Testing:

   • Tested form field focus behavior
   • Verified keyboard appearance doesn't overlap with active input field
   • Confirmed smooth scrolling when switching between email and password fields

WhatsApp.Video.2025-01-29.at.00.14.03.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 and keyboard overlap issues in LoginViewMobile #248
• Tag the PR with the appropriate labels: bug-fix, mobile, ux-improvement