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/Dashboard/NumberDashboardTile.vue

@@ -0,0 +1,20 @@
+<template>
+  <article
+    :class="{ 'bg-white dark:bg-black mb-4 shadow-md rounded p-4': style }"
+  >
+    <p class="text-violet-3 text-4xl font-bold">{{ number }}</p>
+    <slot name="subtitle">
+      {{ subtitle }}
+    </slot>
+  </article>
+</template>
+<script lang="ts" setup>
+withDefaults(
+  defineProps<{
+    number?: number;
+    subtitle?: string;
+    style?: boolean;
+  }>(),
+  { style: true }
+);
+</script>