OMHD-326: Location Sharing Screen Fixes

[maciekBudzinski]

Summary

This PR fixes the issues on the Location Map Screen on iOS and additionally fixes onMapReady and onMapLoaded callbacks on iOS.

Demo

https://github.com/openmobilehub/react-native-omh-maps/assets/23010554/eea14856-c6c0-41b3-bc8d-e231fe36436e

Checklist:

• [x] Documentation is up to date to reflect these changes
• [x] Created Unit tests

Closes: OMHD-326