Clarify external event display duration

Author: martin-forge

src/bases/calendar-core.ts

@@ -35,6 +35,8 @@ import { TimeblockCreationModal } from "../modals/TimeblockCreationModal";
 import { openTaskSelector } from "../modals/TaskSelectorWithCreateModal";
 import { TimeblockInfoModal } from "../modals/TimeblockInfoModal";
 
+const MIN_EXTERNAL_TIMED_EVENT_DURATION_MS = 1;
+
 export interface CalendarEvent {
 	id: string;
 	title: string;
@@ -661,8 +663,8 @@ export function createICSEvent(icsEvent: ICSEvent, plugin: TaskNotesPlugin): Cal
 		return {
 			id: icsEvent.id,
 			title: icsEvent.title,
-			start: start,
-			end: end,
+			start,
+			end,
 			allDay: icsEvent.allDay,
 			backgroundColor: backgroundColor,
 			borderColor: borderColor,
@@ -709,7 +711,7 @@ function normalizeExternalTimedEventRange(
 		return { start, end };
 	}
 
-	const normalizedEnd = new Date(endDate.getTime() + 1);
+	const normalizedEnd = new Date(endDate.getTime() + MIN_EXTERNAL_TIMED_EVENT_DURATION_MS);
 	return {
 		start,
 		end: formatExternalTimedEventEnd(normalizedEnd, end),