Add validation for contactMethod in SetDefaultContactMethodConfirmMagicCodePage

Show FullPageNotFoundView when contactMethod doesn't exist in loginList,
preventing issues if a user manually modifies the URL parameter.

Co-authored-by: Shubham Agrawal <shubham1206agra@users.noreply.github.com>

Author: MelvinBot

src/pages/settings/Profile/Contacts/SetDefaultContactMethodConfirmMagicCodePage.tsx

@@ -1,4 +1,6 @@
 import React, {useEffect, useMemo} from 'react';
+import FullPageNotFoundView from '@components/BlockingViews/FullPageNotFoundView';
+import ScreenWrapper from '@components/ScreenWrapper';
 import ValidateCodeActionContent from '@components/ValidateCodeActionModal/ValidateCodeActionContent';
 import useCurrentUserPersonalDetails from '@hooks/useCurrentUserPersonalDetails';
 import useLocalize from '@hooks/useLocalize';
@@ -40,6 +42,19 @@ function SetDefaultContactMethodConfirmMagicCodePage({route}: SetDefaultContactM
         Navigation.goBack(ROUTES.SETTINGS_CONTACT_METHODS.getRoute(backTo));
     }, [session?.email, contactMethod, loginData?.pendingFields?.defaultLogin, backTo]);
 
+    if (!contactMethod || !loginData) {
+        return (
+            <ScreenWrapper testID="SetDefaultContactMethodConfirmMagicCodePage">
+                <FullPageNotFoundView
+                    shouldShow
+                    linkTranslationKey="contacts.goBackContactMethods"
+                    onBackButtonPress={() => Navigation.goBack(ROUTES.SETTINGS_CONTACT_METHODS.getRoute(backTo))}
+                    onLinkPress={() => Navigation.goBack(ROUTES.SETTINGS_CONTACT_METHODS.getRoute(backTo))}
+                />
+            </ScreenWrapper>
+        );
+    }
+
     return (
         <ValidateCodeActionContent
             title={translate('delegate.makeSureItIsYou')}