fix: ooo reason select dropdown opening in wrong direction (#27426)

Add menuPlacement="bottom" to the reason Select in the OOO modal
to ensure dropdown opens downwards consistently with other selects.

Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>

apps/web/modules/settings/outOfOffice/CreateOrEditOutOfOfficeModal.tsx

@@ -312,6 +312,7 @@ export const CreateOrEditOutOfOfficeEntryModal = ({
                       className="mb-0 mt-1 text-white"
                       name="reason"
                       data-testid="reason_select"
+                      menuPlacement="bottom"
                       value={reasonList.find((reason) => reason.value === value)}
                       placeholder={t("ooo_select_reason")}
                       options={reasonList}