ISTWCMS-5214: adding theming for opportunity nodes and fixing dates

src/Service/UwNodeContent.php

@@ -678,10 +678,10 @@ class UwNodeContent {
    * @param string $type
    *   The type of date.
    *
-   * @return string
-   *   The actual date with proper format.
+   * @return array
+   *   The array of dates.
    */
-  public function getDate(array $date, string $type): string {
+  public function getDate(array $date, string $type): array {
     return $this->uwNodeData->getDate($date, $type);
   }