Set input class to title-4

Author: ranfdev

data/resources/ui/input_page.blp

@@ -9,7 +9,7 @@ template InputPage: Gtk.Box {
   orientation: vertical;
   valign: center;
   Gtk.Label label {
-    styles ["title-2"]
+    styles ["title-4"]
     label: "Text";
     xalign: 0.0;
     margin-top: 8;