holidays implemented

nextjs/src/app/course/[courseName]/modules/[moduleName]/assignment/[assignmentName]/AssignmentButtons.tsx

@@ -123,7 +123,7 @@ export function AssignmentButtons({
             {({ closeModal }) => (
               <div>
                 <div className="text-center">
-                  Are you sure you want to delete this quiz locally?
+                  Are you sure you want to delete this assignment locally?
                 </div>
                 <br />
                 <div className="flex justify-around gap-3">

nextjs/src/app/newCourse/NewCourseForm.tsx

@@ -96,7 +96,7 @@ export default function NewCourseForm() {
                     ],
                     defaultFileUploadTypes: ["pdf", "png", "jpg", "jpeg"],
                     defaultLockHoursOffset: 0,
-                    holidays: {}
+                    holidays: []
                   },
                 })
                 .then(() => {

nextjs/src/services/fileStorage/settingsFileStorageService.ts

@@ -47,7 +47,9 @@ const populateDefaultValues = (settingsFromFile: LocalCourseSettings) => {
       defaultSubmissionType,
     defaultFileUploadTypes:
       settingsFromFile.defaultFileUploadTypes || defaultFileUploadTypes,
-    holidays: !!settingsFromFile.holidays ? settingsFromFile.holidays : [],
+    holidays: Array.isArray(settingsFromFile.holidays)
+      ? settingsFromFile.holidays
+      : [],
   };
   return settings;
 };