Add type annotations to form submit event handlers

[xl495]

Describe the bug

When writing form components, I noticed that the FormSubmitEvent type has a values property that's simply Record<string, any>. I want to make it more flexible using a generic type like values: T.

Pull Request Link

#7287

Reason for not contributing a PR

• Lack of time
• Unsure how to implement the fix/feature
• Difficulty understanding the codebase
• Other

Other Reason

No response

Reproducer

https://stackblitz.com/edit/primevue-4-vite-issue-template-v5kacsqm

Environment

this is just a missing type

Vue version

3.5.13

PrimeVue version

4.2.5

Node version

No response

Browser(s)

No response

Steps to reproduce the behavior

Adding a submit event

Expected behavior

Add generic type T to FormSubmitEvent to represent the values type