pass off isEnabledTimeline variable to client

src/server/models/config.js

@@ -176,6 +176,7 @@ module.exports = function(crowi) {
       isEnabledLinebreaks: crowi.configManager.getConfig('markdown', 'markdown:isEnabledLinebreaks'),
       isEnabledLinebreaksInComments: crowi.configManager.getConfig('markdown', 'markdown:isEnabledLinebreaksInComments'),
       isEnabledXssPrevention: crowi.configManager.getConfig('markdown', 'markdown:xss:isEnabledPrevention'),
+      isEnabledTimeline: crowi.configManager.getConfig('crowi', 'customize:isEnabledTimeline'),
       xssOption: crowi.configManager.getConfig('markdown', 'markdown:xss:option'),
       tagWhiteList: crowi.xssService.getTagWhiteList(),
       attrWhiteList: crowi.xssService.getAttrWhiteList(),