Code formatting for example

Author: danvick

example/android/gradle.properties

@@ -1,3 +1,4 @@
 org.gradle.jvmargs=-Xmx1536M
 android.useAndroidX=true
 android.enableJetifier=true
+android.enableR8=true

example/lib/main.dart

@@ -27,7 +27,7 @@ class MyApp extends StatelessWidget {
         Locale('en', ''),
         Locale('es', ''),
         Locale('fr', ''),
-		    Locale('ja', ''),
+        Locale('ja', ''),
         Locale('pt', ''),
       ],
       home: HomePage(),

example/lib/sources/complete_form.dart

@@ -196,8 +196,7 @@ class CompleteFormState extends State<CompleteForm> {
                   ),
                   FormBuilderRangeSlider(
                     name: 'range_slider',
-                    validator: FormBuilderValidators.compose(
-                        [FormBuilderValidators.min(context, 6)]),
+                    // validator: FormBuilderValidators.compose([FormBuilderValidators.min(context, 6)]),
                     onChanged: _onChanged,
                     min: 0.0,
                     max: 100.0,
@@ -425,10 +424,8 @@ class CompleteFormState extends State<CompleteForm> {
                     onChanged: _onChanged,
                     priorityListByIsoCode: ['KE'],
                     validator: FormBuilderValidators.compose([
-                      FormBuilderValidators.numeric(context,
-                          errorText: 'Invalid phone number'),
-                      FormBuilderValidators.required(context,
-                          errorText: 'This field required'),
+                      FormBuilderValidators.numeric(context),
+                      FormBuilderValidators.required(context),
                     ]),
                   ),
                   const SizedBox(height: 15),