web: spell customization with a Z (#8596)

Co-authored-by: Fletcher Heisler <fletcher@goauthentik.io>

web/src/admin/AdminInterface/AdminSidebar.ts

@@ -122,7 +122,7 @@ export class AkAdminSidebar extends WithCapabilitiesConfig(AKElement) {
                 ["/events/log", msg("Logs"), [`^/events/log/(?<id>${UUID_REGEX})$`]],
                 ["/events/rules", msg("Notification Rules")],
                 ["/events/transports", msg("Notification Transports")]]],
-            [null, msg("Customisation"), null, [
+            [null, msg("Customization"), null, [
                 ["/policy/policies", msg("Policies")],
                 ["/core/property-mappings", msg("Property Mappings")],
                 ["/blueprints/instances", msg("Blueprints")],