refactor(onboarding): update Onboarding page menu and title for clarity

- Changed the menu from "Tools:110" to "UNRAID-OS" and updated the title from "Onboarding Wizard" to "Onboarding Status" to better reflect the current functionality.
- Removed unused modal components to streamline the onboarding page layout.

These changes improve the clarity and organization of the onboarding interface, enhancing user experience.

plugin/source/dynamix.unraid.net/usr/local/emhttp/plugins/dynamix.my.servers/Onboarding.page

@@ -1,11 +1,7 @@
-Menu="Tools:110"
-Title="Onboarding Wizard"
+Menu="UNRAID-OS"
+Title="Onboarding Status"
 Icon="icon-registration"
 Tag="pencil"
 ---
 <!-- Onboarding state + reset -->
 <unraid-onboarding-admin-panel></unraid-onboarding-admin-panel>
-
-<!-- Modals -->
-<unraid-welcome-modal></unraid-welcome-modal>
-<unraid-modals></unraid-modals>