check state, not config for setting value (#25631)

Co-authored-by: Mattermost Build <build@mattermost.com>

webapp/channels/src/components/admin_console/admin_definition.tsx

@@ -3116,7 +3116,7 @@ const AdminDefinition: AdminDefinitionType = {
                             help_text_markdown: false,
                             isDisabled: it.any(
                                 it.not(it.userHasWritePermissionOnResource(RESOURCE_KEYS.SITE.POSTS)),
-                                it.configIsFalse('ServiceSettings', 'EnableLatex'),
+                                it.stateIsFalse('ServiceSettings.EnableLatex'),
                             ),
                         },
                         {