Add warning that backup and restore won't copy templates

Author: jaimecbernardo

src/settings-ui/Settings.UI/SettingsXAML/Views/NewPlusPage.xaml

@@ -58,6 +58,13 @@
 
                     </tkcontrols:SettingsCard>
 
+                    <InfoBar
+                        x:Uid="NewPlus_TemplatesNotBackupAndRestoreWarning"
+                        IsClosable="True"
+                        IsOpen="True"
+                        IsTabStop="True"
+                        Severity="Informational" />
+
                 </controls:SettingsGroup>
 
                 <controls:SettingsGroup x:Uid="NewPlus_Display_Options" IsEnabled="{x:Bind ViewModel.IsEnabled, Mode=OneWay}">

src/settings-ui/Settings.UI/Strings/en-us/Resources.resw

@@ -4302,6 +4302,9 @@ Activate by holding the key for the character you want to add an accent to, then
   <data name="NewPlus_NoWindows10SupportWarning.Title" xml:space="preserve">
     <value>New+ is not supported in Windows 10 and is not expected to work.</value>
   </data>
+  <data name="NewPlus_TemplatesNotBackupAndRestoreWarning.Title" xml:space="preserve">
+    <value>PowerToys "Backup and Restore" feature doesn't take templates into account at this moment. If you use that feature, templates will have to be copied manually.</value>
+  </data>
   <data name="NewPlus_Templates.Header" xml:space="preserve">
     <value>Templates</value>
     <comment>Templates label</comment>