Fixed: On find facility page the updated facility group will show & a toast will show on empty facility group name(#266)

[R-Sourabh]

Related Issues

#266

Short Description and Why It's Useful

• Previously, the facilityGroups were not updating correctly because the call was being made in the mounted lifecycle hook. Moving this call to the ionViewWillEnter ensures the data is refreshed each time the view is entered.
• The delete functionality was not working properly. This was resolved by replacing the deleteFacilityGroup service with updateFacilityGroup, ensuring the deletion process is handled correctly.
• A toast message was added to notify users when they attempt to submit an empty facility group name.

Contribution and Currently Important Rules Acceptance

• I read and followed contribution rules