refactor: change singleton registrations to lazySingleton for improved performance

apps/mobile/packages/features/staff/profile_sections/support/faqs/lib/src/staff_faqs_module.dart

@@ -17,17 +17,17 @@ class FaqsModule extends Module {
   @override
   void binds(Injector i) {
     // Repository
-    i.addSingleton<FaqsRepositoryInterface>(
+    i.addLazySingleton<FaqsRepositoryInterface>(
       () => FaqsRepositoryImpl(),
     );
 
     // Use Cases
-    i.addSingleton(
+    i.addLazySingleton(
       () => GetFaqsUseCase(
         i<FaqsRepositoryInterface>(),
       ),
     );
-    i.addSingleton(
+    i.addLazySingleton(
       () => SearchFaqsUseCase(
         i<FaqsRepositoryInterface>(),
       ),

apps/mobile/packages/features/staff/profile_sections/support/privacy_security/lib/src/staff_privacy_security_module.dart

@@ -25,29 +25,29 @@ class PrivacySecurityModule extends Module {
   @override
   void binds(Injector i) {
     // Repository
-    i.addSingleton<PrivacySettingsRepositoryInterface>(
+    i.addLazySingleton<PrivacySettingsRepositoryInterface>(
       () => PrivacySettingsRepositoryImpl(
         Modular.get<DataConnectService>(),
       ),
     );
 
     // Use Cases
-    i.addSingleton(
+    i.addLazySingleton(
       () => GetProfileVisibilityUseCase(
         i<PrivacySettingsRepositoryInterface>(),
       ),
     );
-    i.addSingleton(
+    i.addLazySingleton(
       () => UpdateProfileVisibilityUseCase(
         i<PrivacySettingsRepositoryInterface>(),
       ),
     );
-    i.addSingleton(
+    i.addLazySingleton(
       () => GetTermsUseCase(
         i<PrivacySettingsRepositoryInterface>(),
       ),
     );
-    i.addSingleton(
+    i.addLazySingleton(
       () => GetPrivacyPolicyUseCase(
         i<PrivacySettingsRepositoryInterface>(),
       ),