pat datetime picker: Import styles.

Author: thet

CHANGES.md

@@ -35,6 +35,7 @@
 
 ### Features
 
+-   pat datetime picker: Import styles.
 -   pat date picker: Import styles for pikaday.
 -   Styles: Import styles by setting ``__patternslib_import_styles``
     Allow importing styles from external libraries in Patternslib JavaScript via the global variable ``window.__patternslib_import_styles`` set to ``true``.

src/pat/datetime-picker/datetime-picker.js

@@ -33,6 +33,9 @@ export default Base.extend({
             return;
         }
 
+        if (window.__patternslib_import_styles) {
+            import("./_datetime-picker.scss");
+        }
         const DatePicker = (await import("../date-picker/date-picker")).default;
 
         const value = this.el.value.split("T");