fix(toc): 🐛 incorrect layout when ToC title has multiple elements

templates/TableOfContents__line.mustache

@@ -4,7 +4,7 @@
 		<div class="citizen-toc__indicator"></div>
 		<div class="citizen-toc__text">
 			<span class="citizen-toc__numb">{{number}}</span>
-			{{{line}}}
+			<span class="citizen-toc__heading">{{{line}}}</span>
 		</div>
 	</a>
 	{{#html-summary}}