add excerpt and scraper details.

webapp/src/components/StoryMeta.svelte

@@ -0,0 +1,30 @@
+<script>
+  export let story;
+
+  let host = new URL(story.url || story.link).hostname.replace(/^www\./, "");
+</script>
+
+<style>
+  ul {
+    margin: 0;
+    padding: 0;
+  }
+  li {
+    display: inline-block;
+    list-style-type: circle;
+  }
+  li:not(:first-of-type)::before {
+    content: " | ";
+  }
+</style>
+
+<ul>
+  {#if story.url}
+    <li>source: <a class="article-source" href={story.url}>{host}</a></li>
+  {/if}
+  {#if story.scraper && story.scraper_link}
+    <li>scraper: <a href={story.scraper_link}>{story.scraper}</a></li>
+  {:else if story.scraper}
+    <li>scraper: {story.scraper}</li>
+  {/if}
+</ul>