website/integrations: Omnissa Workspace ONE Access (#22636)

* website/integrations: Omnissa Workspace ONE Access

Add an integration guide for Omnissa Workspace ONE Access with OIDC SSO
against authentik, covering the OAuth2/OpenID Connect provider
configuration in authentik (with both the web and the awgb://oauth2
mobile redirect URIs), the OpenID Connect IDP setup under
Integrations > Identity Providers in Omnissa Workspace ONE Access
(manual endpoint configuration, client credentials, user lookup
attribute mapping, directories, network ranges, authentication method
name), and a short pointer to wiring the new authentication method
into the relevant access policies. Tested with Omnissa Workspace ONE
Access (SaaS) and authentik 2026.5.0.

Also add Omnissa to the integrations spell-check dictionary.

* website/integrations: Omnissa Workspace ONE Access: cleanup

Clean up the Omnissa Workspace ONE Access integration guide to match current OIDC guidance and template structure.

Agent-thread: https://sdko.org/internal/threads/019e6109-22aa-74a0-a539-ee3f017da7af

Co-authored-by: Agent <agent@svc.sdko.net>

---------

Co-authored-by: nicedevil007 <nicedevil007@users.noreply.github.com>
Co-authored-by: Dominic R <dominic@goauthentik.io>
Co-authored-by: Agent <agent@svc.sdko.net>

locale/en/dictionaries/integrations.txt

@@ -40,6 +40,7 @@ Observium
 Ofair
 Ollama
 Omada
+Omnissa
 omniauth
 openwebui
 OPNsense