Take user to home page when clicking menu bar app icon on subpages

Author: emilbaehr

_includes/header.html

@@ -8,7 +8,11 @@
 					</clipPath>
 				</defs>
 			</svg>
-			<a href="../" target="_self"><img class="headerIcon" src="{{ site.app_icon }}"></a>
+			{% if page.url != '/' %}
+				<a href="../" target="_self"><img class="headerIcon" src="{{ site.app_icon }}"></a>
+			{% else %}
+				<img class="headerIcon" src="{{ site.app_icon }}">
+			{% endif %}
 		</div>
 		<p class="headerName">{{ site.app_name }}</p>
 	</div>