feat: Refactor code structure and optimize performance across multiple modules

mobile-apps/staff-app/lib/features/profile/address/data/gql.dart

@@ -0,0 +1,26 @@
+const String staffAddress = r'''
+query staffAddress {
+  me {
+  id
+    full_address {
+      street_number
+      zip_code
+      latitude
+      longitude
+      formatted_address
+      street
+      region
+      city
+      country
+    }
+  }
+}
+''';
+
+const String saveFullAddress = r'''
+mutation saveFullAddress($input: AddressInput!) {
+  update_staff_address(input: $input) {
+ 
+  }
+}
+''';