fix: update placeholder-shown property (#929)

Author: Marukome0743

src/selector.rs

@@ -158,8 +158,8 @@ impl<'a, 'o, 'i> parcel_selectors::parser::Parser<'i> for SelectorParser<'a, 'o,
       "read-write" => ReadWrite(VendorPrefix::None),
       "-moz-read-write" => ReadWrite(VendorPrefix::Moz),
       "placeholder-shown" => PlaceholderShown(VendorPrefix::None),
-      "-moz-placeholder-shown" => PlaceholderShown(VendorPrefix::Moz),
-      "-ms-placeholder-shown" => PlaceholderShown(VendorPrefix::Ms),
+      "-moz-placeholder" => PlaceholderShown(VendorPrefix::Moz),
+      "-ms-input-placeholder" => PlaceholderShown(VendorPrefix::Ms),
       "default" => Default,
       "checked" => Checked,
       "indeterminate" => Indeterminate,