Adjust change plans button logic

lib/ui/settings/account_management.dart

@@ -366,11 +366,13 @@ class _AccountOverview extends StatelessWidget {
           ),
         if (state.isHosted) ...[
           if (state.isProPlan && account.hasIapPlan)
-            SizedBox()
-          else if (state.isProPlan &&
-              !account.hasIapPlan &&
-              supportsInAppPurchase())
-            SizedBox()
+            Padding(
+              padding: const EdgeInsets.all(20),
+              child: Text(
+                localization.useMobileToManagePlan,
+                textAlign: TextAlign.center,
+              ),
+            )
           else
             Padding(
               padding: const EdgeInsets.only(left: 16, top: 16, right: 16),
@@ -387,7 +389,7 @@ class _AccountOverview extends StatelessWidget {
                     ),
                   ),
                   onPressed: () {
-                    if (supportsInAppPurchase()) {
+                    if (supportsInAppPurchase() && !account.hasIapPlan) {
                       showDialog<void>(
                         context: context,
                         builder: (context) => UpgradeDialog(),

lib/utils/i18n.dart

@@ -18,6 +18,8 @@ mixin LocalizationsProvider on LocaleCodeAware {
   static final Map<String, Map<String, String>> _localizedValues = {
     'en': {
       // STARTER: lang key - do not remove comment
+      'use_mobile_to_manage_plan':
+          'Use your phone subscription settings to manage your plan',
       'show_task_billable': 'Show Task Billable',
       'credit_item': 'Credit Item',
       'drop_file_here': 'Drop file here',
@@ -103261,6 +103263,10 @@ mixin LocalizationsProvider on LocaleCodeAware {
       _localizedValues[localeCode]['show_task_billable'] ??
       _localizedValues['en']['show_task_billable'];
 
+  String get useMobileToManagePlan =>
+      _localizedValues[localeCode]['use_mobile_to_manage_plan'] ??
+      _localizedValues['en']['use_mobile_to_manage_plan'];
+
 // STARTER: lang field - do not remove comment
 
   String lookup(String key) {