concarneau: use Gotham-Bold font for site title (#30597)

static/concarneau/_custom.scss

@@ -1,5 +1,10 @@
 @import '../../publik-base-theme/static/includes/font-opensans';
 
+@font-face {
+	font-family: 'Gotham-Bold';
+	src: url('assets/fonts/gotham-bold.woff') format('woff');
+}
+
 body {
     background-color: #ece4e0;
 
@@ -33,10 +38,9 @@ body {
                                 width: 100%;
                                 max-width: 220px;
                                 text-transform: uppercase;
-                                font-family: OpenSans-Bold,Arial,sans-serif;
-                                font-size: 1.7em;
-                                font-weight: bold;
-
+                                font-family: Gotham-Bold,Arial,sans-serif;
+                                font-size: 30px;;
+                                line-height: 1.2em;
                                 a {
                                     color: $secondary-color;
                                 }