docs: added identity-center.md doc for AWS SSO (#15689)

* docs: added identity center doc (AWS SSO)

Signed-off-by: zeusal <zeusariaslucero@gmail.com>

* Apply suggestions from code review

Co-authored-by: Carlos Santana <csantana23@gmail.com>
Signed-off-by: Zeus Arias Lucero <33123154+zeusal@users.noreply.github.com>

* Update identity-center.md

Added note for attribute mapping 

Signed-off-by: Zeus Arias Lucero <33123154+zeusal@users.noreply.github.com>

* Update identity-center.md

Signed-off-by: Zeus Arias Lucero <33123154+zeusal@users.noreply.github.com>

* Update docs/operator-manual/user-management/identity-center.md

Co-authored-by: Justin Marquis <76892343+34fathombelow@users.noreply.github.com>
Signed-off-by: Zeus Arias Lucero <33123154+zeusal@users.noreply.github.com>

* Update identity-center.md

Signed-off-by: Zeus Arias Lucero <33123154+zeusal@users.noreply.github.com>

Fixed image order and style doc

Update identity-center.md

Signed-off-by: Zeus Arias Lucero <33123154+zeusal@users.noreply.github.com>

Update identity-center.md

Signed-off-by: Zeus Arias Lucero <33123154+zeusal@users.noreply.github.com>

* Update identity-center.md

Signed-off-by: Zeus Arias Lucero <33123154+zeusal@users.noreply.github.com>

---------

Signed-off-by: zeusal <zeusariaslucero@gmail.com>
Signed-off-by: Zeus Arias Lucero <33123154+zeusal@users.noreply.github.com>
Co-authored-by: Zeus Arias <zeus.ariaslucero@ust.com>
Co-authored-by: Carlos Santana <csantana23@gmail.com>
Co-authored-by: Justin Marquis <76892343+34fathombelow@users.noreply.github.com>

mkdocs.yml

@@ -40,6 +40,7 @@ nav:
     - operator-manual/user-management/openunison.md
     - operator-manual/user-management/google.md
     - operator-manual/user-management/zitadel.md
+    - operator-manual/user-management/identity-center.md
     - operator-manual/rbac.md
   - Security:
     - Overview: operator-manual/security.md