Update src/content/docs/identityserver/reference/stores/server-side-sessions.md

Co-authored-by: Maarten Balliauw <maarten.balliauw@duendesoftware.com>

Author: khalidabuhakmeh

src/content/docs/identityserver/reference/stores/server-side-sessions.md

@@ -2,7 +2,7 @@
 title: "Server-Side Session Store"
 description: "Documentation for the IServerSideSessionStore interface and related models for managing server-side user authentication session data."
 sidebar:
-  label: Server-Side Session
+  label: Server-Side Sessions
   order: 100
 redirect_from:
   - /identityserver/v5/reference/stores/server_side_sessions/