[Settings]Update "Back up" mentions when it should be used as a verb (#36965)

* Update Back up name

* Rename Backup to Back up

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

@@ -879,7 +879,7 @@
     <value>Location</value>
   </data>
   <data name="General_SettingsBackupAndRestore_ButtonBackup.Content" xml:space="preserve">
-    <value>Backup</value>
+    <value>Back up</value>
   </data>
   <data name="General_SettingsBackupInfo_FileNameHeader.Text" xml:space="preserve">
     <value>File name:</value>
@@ -1104,10 +1104,10 @@
     <value>Appearance &amp; behavior</value>
   </data>
   <data name="General_SettingsBackupAndRestoreTitle.Header" xml:space="preserve">
-    <value>Backup &amp; restore</value>
+    <value>Back up &amp; restore</value>
   </data>
   <data name="General_SettingsBackupAndRestore.Header" xml:space="preserve">
-    <value>Backup and restore your settings</value>
+    <value>Back up and restore your settings</value>
   </data>
   <data name="General_SettingsBackupAndRestore.Description" xml:space="preserve">
     <value>PowerToys will restart automatically if needed</value>
@@ -3343,7 +3343,7 @@ Activate by holding the key for the character you want to add an accent to, then
     <value>There was an error in the settings format. Please check the settings file:</value>
   </data>
   <data name="General_SettingsBackupAndRestore_BackupComplete" xml:space="preserve">
-    <value>Backup completed.</value>
+    <value>Back up completed.</value>
   </data>
   <data name="General_SettingsBackupAndRestore_NoBackupSyncPath" xml:space="preserve">
     <value>No backup location selected.</value>
@@ -4388,7 +4388,7 @@ Activate by holding the key for the character you want to add an accent to, then
     <comment>Localize product name in accordance with Windows New</comment>
   </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>
+    <value>PowerToys "Back up 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>