Improvements on Clinic details page on frontend

[mariusghitoiu]

We want to do the following improvements:
Exemple of the page https://impreunapentrusanatate.ro/ro/clinics/centrul-medical-national-pentru-copii-din-shanghai

• If an item is null we should not show the label or icon.
• Add country prefix to phone numbers displayed on this page
• Instead of showing clinic link we should add the text Website that should link to the address completed by admin. This should open in a new tab. Ideal we add an icon to indicate that. Make sure to use rel=noopener.
• Rename Detalii Clinica from where we show oncologie, hematologie etc to Specializare Clinică

[andreipetcu]

Done on development branch.

[mariusghitoiu]

Deployed in production.