textDecorationLine: 'underline' should be default on 'link' but this isn't working

### Description

Link variant of Button should be underlined on hover and on pressed according to docs but this doesn't work

### CodeSandbox/Snack link

no need

### Steps to reproduce

Go to : https://github.com/GeekyAnts/NativeBase/blob/master/src/theme/components/button.ts
Go to Link Varient

Link on Press and on Hover says it should underline

```
_hover: {
_text: {
textDecorationLine: 'underline',
},
},
_pressed: {
_text: {
color: `${colorScheme}.800`,
textDecorationLine: 'underline',
},
},

```
However, it does not and overriding does not change either

### NativeBase Version

3.4.25

### Platform

- [X] Android
- [ ] CRA
- [X] Expo
- [X] iOS
- [ ] Next

### Other Platform

web

### Additional Information

_No response_

Start in src/theme/components/button.ts at the Link variant and inspect how the _hover and _pressed text styles are applied. Reproduce the behavior on the listed Android, iOS, and web platforms, then verify that the documented underline behavior and style overrides work consistently.

Written by the indexing model from the issue text.