feat(forms): add blur validation and focus first invalid field on submit

[Innagl]

Describe your changes

Wire useFormValidation blur handlers and submit-time focus across project, project risk, vendor risk, and vendor risk modal forms while keeping submit enabled and blocking save until validation passes.

Write your issue number after "Fixes "

Fixes #4145

Please ensure all items are checked off before requesting a review:

• I deployed the code locally.
• I have performed a self-review of my code.
• I have included the issue # in the PR.
• I have labelled the PR correctly.
• The issue I am working on is assigned to me.
• I have avoided using hardcoded values to ensure scalability and maintain consistency across the application.
• I have ensured that font sizes, color choices, and other UI elements are referenced from the theme.
• My pull request is focused and addresses a single, specific feature.
• If there are UI changes, I have attached a screenshot or video to this PR.

[Innagl]

@MuhammadKhalilzadeh Specs (#4019 - 5. Improve form-validation UX across risk management, vendor management, and use cases) requires changes only for Vendor management, Risk management and Use cases. But I believe we should apply the same approach to the rest of the forms as well

[MuhammadKhalilzadeh]

@MuhammadKhalilzadeh Specs (#4019 - 5. Improve form-validation UX across risk management, vendor management, and use cases) requires changes only for Vendor management, Risk management and Use cases. But I believe we should apply the same approach to the rest of the forms as well

Thank you for the dedication @Innagl
Let's apply it wherever you see it's needed

[MuhammadKhalilzadeh]

Are we done on this PR @Innagl ?