build: switch from yarn to npm to manage js dependencies and move js contents to root

yarn v1 is being deprecated and starts to have some issues

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

src/types/event-options.model.ts

@@ -0,0 +1,63 @@
+import { CommentModeration } from "./enums";
+
+export interface IParticipationCondition {
+  title: string;
+  content: string;
+  url: string;
+}
+
+export interface IOffer {
+  price: number;
+  priceCurrency: string;
+  url: string;
+}
+
+export interface IEventOptions {
+  maximumAttendeeCapacity: number;
+  remainingAttendeeCapacity: number;
+  showRemainingAttendeeCapacity: boolean;
+  anonymousParticipation: boolean;
+  hideOrganizerWhenGroupEvent: boolean;
+  offers: IOffer[];
+  participationConditions: IParticipationCondition[];
+  attendees: string[];
+  program: string;
+  commentModeration: CommentModeration;
+  showParticipationPrice: boolean;
+  showStartTime: boolean;
+  showEndTime: boolean;
+  timezone: string | null;
+  isOnline: boolean;
+}
+
+export class EventOptions implements IEventOptions {
+  maximumAttendeeCapacity = 0;
+
+  remainingAttendeeCapacity = 0;
+
+  showRemainingAttendeeCapacity = false;
+
+  anonymousParticipation = false;
+
+  hideOrganizerWhenGroupEvent = false;
+
+  offers: IOffer[] = [];
+
+  participationConditions: IParticipationCondition[] = [];
+
+  attendees: string[] = [];
+
+  program = "";
+
+  commentModeration = CommentModeration.ALLOW_ALL;
+
+  showParticipationPrice = false;
+
+  showStartTime = true;
+
+  showEndTime = true;
+
+  timezone = null;
+
+  isOnline = false;
+}