Rename repo size sorting options (#10587)

options/locale/locale_en-US.ini

@@ -944,8 +944,8 @@ issues.label_deletion_desc = Deleting a label removes it from all issues. Contin
 issues.label_deletion_success = The label has been deleted.
 issues.label.filter_sort.alphabetically = Alphabetically
 issues.label.filter_sort.reverse_alphabetically = Reverse alphabetically
-issues.label.filter_sort.by_size = Size
-issues.label.filter_sort.reverse_by_size = Reverse size
+issues.label.filter_sort.by_size = Smallest size
+issues.label.filter_sort.reverse_by_size = Largest size
 issues.num_participants = %d Participants
 issues.attachment.open_tab = `Click to see "%s" in a new tab`
 issues.attachment.download = `Click to download "%s"`