Long error message for form validation

[yudaprama]

Describe the bug

To Reproduce Steps to reproduce the behavior:

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior A clear and concise description of what you expected to happen.

Screenshots If applicable, add screenshots to help explain your problem.

Information (please complete the following information):

• Device: [e.g. iPhone6]
• Platform [e.g. mobile, web]
• Flutter version: [e.g. 1.12.13]
• Package version [e.g. 1.0.0]

Additional context Add any other context about the problem here.