fix: firmware cannot be linked

src/routes/(app)/ccos/+layout.svelte

@@ -0,0 +1,15 @@
+<script lang="ts">
+  let { children } = $props();
+</script>
+
+<h1><a href="/ccos">Firmware Updates</a></h1>
+
+{@render children()}
+
+<style lang="scss">
+  h1 {
+    margin-block: 1em;
+    padding: 0;
+    font-size: 3em;
+  }
+</style>