🚸 Add text if there is no entry for selected day

- Overlay if substitutions / history view is still loading
- Overlay if no substitution exists for current day
- Overlay if no history exists for current day

src/components/info-card.vue

@@ -0,0 +1,73 @@
+<script setup>
+defineProps({
+  title: {
+    type: String,
+    required: true,
+  },
+  text: {
+    type: String,
+    required: true,
+  },
+  icon: {
+    required: true,
+  },
+});
+</script>
+
+<template>
+  <div class="info-card">
+    <div class="content">
+      <component :is="icon" class="icon" />
+      <span class="title">{{ $t(title) }}</span>
+      <span class="description">{{ $t(text) }}</span>
+    </div>
+  </div>
+</template>
+
+<style scoped>
+.info-card {
+  position: absolute;
+  left: 0;
+  right: 0;
+  top: 0;
+  bottom: 0;
+  margin: auto;
+  margin-top: 50px;
+  width: max-content;
+  height: 50vh;
+  max-width: 100%;
+  z-index: 1;
+}
+
+.content {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  gap: 3px;
+  max-width: 400px;
+  padding: 30px;
+  height: inherit;
+}
+
+.icon {
+  width: 100px;
+  height: 100px;
+  stroke-width: 1px;
+  padding-bottom: 15px;
+}
+
+span {
+  word-wrap: normal;
+  text-align: center;
+}
+
+span.title {
+  font-weight: bold;
+  font-size: 18px;
+}
+
+span.description {
+  font-weight: 300;
+}
+</style>