Code Quality: Fixed items processed string in status center (#17383)

Author: SilverGreen93

src/Files.App/Strings/en-US/Resources.resw

@@ -3718,7 +3718,7 @@
     <comment>Shown in a StatusCenter card.</comment>
   </data>
   <data name="StatusCenter_ProcessedItems_Header" xml:space="preserve">
-    <value>{0}/{1} {0, plural, one {item} other {items}} processed</value>
+    <value>{0}/{1, plural, one {# item} other {# items}} processed</value>
     <comment>Shown in a StatusCenter card. Used as "8/20 items processed"</comment>
   </data>
   <data name="UnblockDownloadedFile" xml:space="preserve">

src/Files.App/Utils/StatusCenter/StatusCenterItem.cs

@@ -301,7 +301,7 @@ private void ReportProgress(StatusCenterItemProgressModel value)
 					{
 						Message =
 							$"{string.Format(
-								Strings.StatusCenter_ProcessedItems_Header.GetLocalizedFormatResource(value.ProcessedItemsCount),
+								Strings.StatusCenter_ProcessedItems_Header.GetLocalizedFormatResource(value.ProcessedItemsCount, value.ItemsCount),
 								value.ProcessedItemsCount,
 								value.ItemsCount)}";
 					}