* [#527] added panel to grant right for calendar delegation
* [#527] added rights management to access modal
* [#527] conditionnal rendering of access granting based on rights
* [#527] saves on close except cancel
* [#527] added tests
* [#523] added way to manage attendance for delegated calendars
* [DELEGATION] #523 & #524 changed eventURL calculation for delegated events to have the rigth one
* [#524] added drag and drop authorisation to delegated event
* [#524] added tests
* [#524] support for the permission access
* [#524] no edit when delegated event is not public
- Refactor ~47 test cases across 7 test files to use getByRole
- Improve accessibility testing coverage following Testing Library best practices
- Make tests more robust against text changes (i18n, copy updates)
- Test elements as users (especially screen readers) interact with them
- Add expand and close icons to ResponsiveDialog header in normal mode
- Change 'Show More' button to 'More options' with Add icon
- Hide Cancel button in normal mode, show only in extended mode
- Add showHeaderActions prop to ResponsiveDialog for UI control
- Preserve EventDisplayPreview modal with old UI (no header icons)
- Update all affected test cases to match new UI behavior
lethemanh