Add string

Author: Lukiluc29

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

@@ -2475,7 +2475,7 @@
     <value>Restore all items from recycle bin</value>
   </data>
   <data name="OpenItemDescription" xml:space="preserve">
-    <value>Open {0, plural, one {item} other {items}}</value>
+    <value>Open {0, plural, one {the selected item} other {selected items}}</value>
   </data>
   <data name="OpenItemWithApplicationPickerDescription" xml:space="preserve">
     <value>Open {0, plural, one {item} other {items}} with selected application</value>