Replace loading text with component

src/lib/ldb/public-ldb.svelte

@@ -1,6 +1,7 @@
 <script>
   export let station = "";
   import { onMount } from 'svelte'
+  import Loading from '$lib/navigation/loading.svelte';
 
   let requestedStation;
   $: requestedStation = station;
@@ -86,7 +87,7 @@
 </script>
 
 {#if isLoading}
-  <p id="timestamp">Loading...</p>
+  <Loading />
 {:else}
   <p id="timestamp">Updated: {dataAge.toLocaleTimeString()}</p>