feat: move top screen components to own folder, and implement calendar

app/components/TopScreen/Background.vue

@@ -0,0 +1,13 @@
+<script setup lang="ts">
+const backgroundImage = useTemplateRef("backgroundImage");
+
+useRender((ctx) => {
+  if (!backgroundImage.value) return;
+
+  ctx.drawImage(backgroundImage.value, 0, 0);
+});
+</script>
+
+<template>
+  <img ref="backgroundImage" src="/assets/background.png" hidden />
+</template>