Add Wikipedia icon, support for filled SVGs

app/components/icon.gjs

@@ -74,7 +74,11 @@ export default class IconComponent extends Component {
 
   <template>
     {{#if this.svg}}
-      <span class="icon" style={{this.style}} title={{this.title}}>
+      <span
+        class="icon {{if @filled 'icon-filled'}}"
+        style={{this.style}}
+        title={{this.title}}
+      >
         {{htmlSafe this.svg}}
       </span>
     {{/if}}

app/components/place-details.gjs

@@ -248,14 +248,14 @@ export default class PlaceDetails extends Component {
 
         {{#if this.wikipedia}}
           <p class="content-with-icon">
-            <Icon @name="wikipedia" @title="Wikipedia" />
+            <Icon @name="wikipedia" @title="Wikipedia" @filled={{true}} />
             <span>
               <a
                 href="https://wikipedia.org/wiki/{{this.wikipedia}}"
                 target="_blank"
                 rel="noopener noreferrer"
               >
-                Wikipedia Article
+                Wikipedia
               </a>
             </span>
           </p>