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/components/Event/ShareEventModal.story.vue

@@ -0,0 +1,29 @@
+<template>
+  <Story>
+    <Variant title="Public">
+      <ShareEventModal :event="event" />
+    </Variant>
+    <Variant title="Private">
+      <ShareEventModal
+        :event="{ ...event, visibility: EventVisibility.PRIVATE }"
+      />
+    </Variant>
+    <Variant title="Cancelled">
+      <ShareEventModal :event="{ ...event, status: EventStatus.CANCELLED }" />
+    </Variant>
+    <Variant title="No seats left">
+      <ShareEventModal :event="event" :event-capacity-o-k="false" />
+    </Variant>
+  </Story>
+</template>
+
+<script lang="ts" setup>
+import { EventVisibility, EventStatus } from "@/types/enums";
+import ShareEventModal from "./ShareEventModal.vue";
+
+const event = {
+  title: "hello",
+  url: "https://mobilizon.fr/events/an-uuid",
+  visibility: EventVisibility.PUBLIC,
+};
+</script>