Update texts in the global nav

ee/app/helpers/ee/nav/top_nav_helper.rb

@@ -44,7 +44,7 @@ def build_view_model(builder:, project:, group:)
         if ::Gitlab::Geo.secondary? && ::Gitlab::Geo.primary_node_configured?
           builder.add_secondary_menu_item(
             id: 'geo',
-            title: _('Go to primary node'),
+            title: _('Go to primary site'),
             icon: 'location-dot',
             href: ::Gitlab::Geo.primary_node.url
           )

ee/spec/helpers/nav/top_nav_helper_spec.rb

@@ -97,7 +97,7 @@
           href: url,
           icon: 'location-dot',
           id: 'geo',
-          title: 'Go to primary node'
+          title: 'Go to primary site'
         )
         expect(subject[:secondary]).to eq([expected_secondary])
       end