Remove unused fonts

lib/ui/payment/child_subscription_widget.dart

@@ -82,7 +82,6 @@ class ChildSubscriptionWidget extends StatelessWidget {
               child: Text(
                 "leave family",
                 style: TextStyle(
-                  fontFamily: 'Ubuntu-Regular',
                   fontWeight: FontWeight.bold,
                   fontSize: 18,
                   color: Color.fromRGBO(255, 52, 52, 1),

lib/ui/payment/stripe_subscription_page.dart

@@ -274,7 +274,6 @@ class _StripeSubscriptionPageState extends State<StripeSubscriptionPage> {
                       text: "Manage family",
                       style: TextStyle(
                         color: Colors.blue,
-                        fontFamily: 'Ubuntu',
                         fontSize: 15,
                       ),
                     ),

lib/ui/settings/danger_section_widget.dart

@@ -76,7 +76,6 @@ class _DangerSectionWidgetState extends State<DangerSectionWidget> {
           style: TextStyle(
             color: Theme.of(context).colorScheme.onSurface,
             height: 1.5,
-            fontFamily: 'Ubuntu',
             fontSize: 16,
           ),
         ),

pubspec.yaml

@@ -143,14 +143,6 @@ flutter:
   assets:
     - assets/
   fonts:
-  - family: NunitoSans
-    fonts:
-      - asset: fonts/NunitoSans-Regular.ttf
-      - asset: fonts/NunitoSans-Bold.ttf
-  - family: Ubuntu
-    fonts:
-      - asset: fonts/Ubuntu-Regular.ttf
-      - asset: fonts/Ubuntu-Light.ttf
   - family: Inter
     fonts:
       - asset: fonts/Inter-Regular.ttf
@@ -160,7 +152,7 @@ flutter:
       - asset: fonts/Inter-Bold.ttf
   - family: Montserrat
     fonts:
-      - asset: fonts/Montserrat-Medium.ttf
+      - asset: fonts/Montserrat-Bold.ttf
 
   # The following line ensures that the Material Icons font is
   # included with your application, so that you can use the icons in