Fix password visibility and keyboard overlap issues in LoginViewMobile

[navaneeth0041]

🐛 Describe the bug

Two UX issues were identified in the LoginViewMobile page:

1. Password field was showing characters by default instead of being obscured
2. On-screen keyboard was overlapping with input fields when focused, making text entry difficult

Sample code to reproduce the problem:

CustomTextField(
  controller: passwordController,
  text: 'Password',
  isSeen: !isSeen,  // Bug: Default value of isSeen was false, making password visible
  suffixIcon: IconButton(
    onPressed: () {
      setState(() {
        isSeen = !isSeen;
      });
    },
    icon: Icon(
      !isSeen ? Icons.visibility_off : Icons.visibility,
    ),
  ),
)

WhatsApp.Video.2025-01-29.at.00.09.44.1.mp4

[MahmoudHassan9]

can you asssign this to me ? @navaneeth0041

[navaneeth0041]

can you asssign this to me ? @navaneeth0041

I already gave the pr solving this issue. If u have any suggestions on that please let me know.