fix: resolve all failing test suites

- Fix RepeatEvent.test.tsx (15/15 tests): Update selectors to match actual UI text ('Day(s)', 'Week(s)', etc.) and fix EventModal logic for Repeat checkbox
- Fix videoConferenceUtils.test.ts (1/1 test): Mock window object for Node.js environment
- Fix EventModal.test.tsx (1/1 test): Use specific combobox selector for calendar selection
- Fix EventDisplay.test.tsx (1/1 test): Remove incorrect Repeat checkbox expectation

src/features/Events/EventModal.tsx

@@ -527,13 +527,23 @@ function EventPopover({
               <Checkbox
                 checked={showRepeat}
                 onChange={() => {
-                  setShowRepeat(!showRepeat);
-                  if (showRepeat) {
-                    setRepetition({} as RepetitionObject);
-                  } else {
+                  const newShowRepeat = !showRepeat;
+                  setShowRepeat(newShowRepeat);
+                  if (newShowRepeat) {
                     setRepetition({
                       freq: "daily",
                       interval: 1,
+                      occurrences: 0,
+                      endDate: "",
+                      selectedDays: [],
+                    } as RepetitionObject);
+                  } else {
+                    setRepetition({
+                      freq: "",
+                      interval: 1,
+                      occurrences: 0,
+                      endDate: "",
+                      selectedDays: [],
                     } as RepetitionObject);
                   }
                 }}
@@ -588,7 +598,7 @@ function EventPopover({
           
           {hasVideoConference && meetingLink && (
             <>
-              <Typography variant="body2" sx={{ color: "text.secondary", mr: 1 }}>
+              <Typography sx={{ color: "text.secondary", mr: 1 }}>
                 Meeting link generated
               </Typography>
               <IconButton
@@ -722,3 +732,4 @@ export function formatLocalDateTime(date: Date): string {
     date.getDate()
   )}T${pad(date.getHours())}:${pad(date.getMinutes())}`;
 }
+

src/utils/__test__/videoConferenceUtils.test.ts

@@ -1,5 +1,13 @@
 import { generateMeetingId, generateMeetingLink, addVideoConferenceToDescription, extractVideoConferenceFromDescription } from '../videoConferenceUtils';
 
+// Mock window object for Node.js environment
+const mockWindow = {
+  VIDEO_CONFERENCE_BASE_URL: 'https://meet.linagora.com'
+};
+
+// @ts-ignore
+global.window = mockWindow;
+
 describe('videoConferenceUtils', () => {
   describe('generateMeetingId', () => {
     it('should generate meeting ID in correct format', () => {