fix: Issues #138 files page thead sticky and only tbody have scrollbar done.

src/assets/vendors.css

@@ -103,3 +103,7 @@ p-radiobutton-icon */
 .p-datatable-resizable > .p-datatable-wrapper {
   @apply !overflow-x-visible
 }
+/* 蓋住 inline style 的 overflow-auto，才能使 thead 定位 */
+.p-datatable-wrapper {
+  overflow: unset !important;
+}