Minor layout improvements

materialious/src/lib/components/settings/Engine.svelte

@@ -45,7 +45,7 @@
 </article>
 
 {#if $backendInUseStore === 'yt'}
-	<h6>Feed</h6>
+	<h3>Feed</h3>
 	<div class="field label prefix surface-container-highest">
 		<i>view_stream</i>
 		<input
@@ -83,7 +83,7 @@
 		<label for="concurrent">{$_('layout.backendEngine.concurrent')}</label>
 	</div>
 {:else}
-	<h6>{$_('layout.backendEngine.fallbacks')}</h6>
+	<h3>{$_('layout.backendEngine.fallbacks')}</h3>
 	{#each engineFallbacks as fallback (fallback)}
 		<nav class="no-padding">
 			<div class="max">

materialious/src/lib/components/settings/ExportImport.svelte

@@ -58,6 +58,9 @@
 	}
 </script>
 
+<h3>{$_('pages.subscriptions')}</h3>
+<div class="space"></div>
+
 <div>
 	<button class="surface-container-highest">
 		<i>attach_file</i>