Add null types to InputText and Password

[ig-onoffice-de]

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Current behavior
It is not possible to use a nullable Type as input for InputText or Password component.

Expected behavior
It should be possible to use also null as input in InputText and Password component.

Minimal reproduction of the problem with instructions

<script lang="ts" setup>
import { reactive } from 'vue'
import { Nullable } from 'primevue/ts-helpers'

export type TestData = {
  notNullable: string | undefined,
  nullableExplicit: string | undefined | null,
  nullableWithType: Nullable<string>
}

const data: TestData = reactive({
  notNullable: undefined,
  nullableExplicit: null,
  nullableWithType: null
})
</script>
<template>
  <InputText v-model="data.notNullable"/>
  <InputText v-model="data.nullableExplicit"/>
  <InputText v-model="data.nullableWithType"/>
</template>

The second and third InputText gives me typescript errors on build (using InputText or using Password)

 error TS2322: Type 'string | undefined | null' is not assignable to type 'string | undefined'.
  Type 'null' is not assignable to type 'string | undefined'.
         v-model="data.nullableExplicit"
error TS2322: Type 'Nullable<string>' is not assignable to type 'string | undefined'.
          v-model="data.nullableWithType"

What is the motivation / use case for changing the behavior?
I need the possibility to set my input data to null not undefined.

Please tell us about your environment:

• Vue version: 3.2.25

• PrimeVue version: 3.12.6

• Browser: [all ]