web/admin: fix default icon for application list

Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>

web/src/pages/applications/ApplicationListPage.ts

@@ -66,7 +66,7 @@ export class ApplicationListPage extends TablePage<Application> {
         return [
             item.metaIcon ?
                 html`<img class="app-icon pf-c-avatar" src="${item.metaIcon}" alt="${t`Application Icon`}">` :
-                html`<i class="fas fas fa-share-square"></i>`,
+                html`<i class="fas fa-question-circle"></i>`,
             html`<a href="#/core/applications/${item.slug}">
                 <div>
                     ${item.name}