docs: minor improvements

docs/components/content/BadgeShortcut.vue

@@ -0,0 +1,18 @@
+<template>
+  <UKbd class="!my-0 align-text-top">
+    {{ shortcut }}
+  </UKbd>
+</template>
+
+<script setup lang="ts">
+const props = defineProps({
+  value: {
+    type: String,
+    required: true
+  }
+})
+
+const { metaSymbol } = useShortcuts()
+
+const shortcut = computed(() => props.value === 'meta' ? metaSymbol.value : props.value)
+</script>