fix: add event emit for long press

[josemak25]

Summary

Fixes event emitter for #3758

Test plan

yarn bootstrap works

[callstack-bot]

Hey @josemak25, thank you for your pull request 🤗. The documentation from this branch can be viewed here.

[github-actions]

The mobile version of example app from this branch is ready! You can see it here.

[satya164]

All this needed to do is add onTabLongPress={({ route }) => navigation.emit({ type: 'tabLongPress', target: route.key })}

This abstraction is unnecessary. There's also no default action that happens on onLongPress so canPreventDefault doesn't do anything.

[josemak25]

All this needed to do is add onTabLongPress={({ route }) => navigation.emit({ type: 'tabLongPress', target: route.key })}

This abstraction is unnecessary. There's also no default action that happens on onLongPress so canPreventDefault doesn't do anything.

Noted making changes to this now