feat: add upgrade banner for SLA feature (#9240)

- Add an upgrade CTA for the SLA feature

-------------------

Co-authored-by: Sojan Jose <sojan@pepalo.com>
Co-authored-by: Pranav <pranav@chatwoot.com>

app/views/layouts/vueapp.html.erb

@@ -40,6 +40,9 @@
         fbApiVersion: '<%= @global_config['FACEBOOK_API_VERSION'] %>',
         signupEnabled: '<%= @global_config['ENABLE_ACCOUNT_SIGNUP'] %>',
         isEnterprise: '<%= @global_config['IS_ENTERPRISE'] %>',
+        <% if @global_config['IS_ENTERPRISE'] %>
+        enterprisePlanName: '<%= @global_config['INSTALLATION_PRICING_PLAN'] %>',
+        <% end %>
         <% if @global_config['VAPID_PUBLIC_KEY'] %>
         vapidPublicKey: new Uint8Array(<%= Base64.urlsafe_decode64(@global_config['VAPID_PUBLIC_KEY']).bytes %>),
         <% end %>