[#527] calendar delegation CRUD (#581)

* [#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

src/utils/accessRightToDavProp.tsx

@@ -0,0 +1,16 @@
+import { AccessRight } from "@/features/Calendars/CalendarTypes";
+
+// Maps our AccessRight numeric value to the DAV share property key
+export function accessRightToDavProp(
+  right: AccessRight
+): "dav:administration" | "dav:read-write" | "dav:read" {
+  switch (right) {
+    case 5:
+      return "dav:administration";
+    case 3:
+      return "dav:read-write";
+    case 2:
+    default:
+      return "dav:read";
+  }
+}