Move enableServerManagement key from defaultPreferences to buildConfig

src/common/config/buildConfig.js

@@ -5,6 +5,7 @@
  * @prop {string} defaultTeams[].url - The URL for default team.
  * @prop {string} helpLink - The URL for "Help->Learn More..." menu item.
  *                           If null is specified, the menu disappears.
+ * @prop {boolean} enableServerManagement - Whether users can edit servers configuration.
  */
 const buildConfig = {
   defaultTeams: [/*
@@ -13,7 +14,8 @@ const buildConfig = {
       url: 'https://example.com'
     }*/
   ],
-  helpLink: 'https://docs.mattermost.com/help/apps/desktop-guide.html'
+  helpLink: 'https://docs.mattermost.com/help/apps/desktop-guide.html',
+  enableServerManagement: true
 };
 
 module.exports = buildConfig;