Fix an issue where server select menu was not working in settings page
Fix an issue where server select menu was not working in settings page

Close #443

jnugh/desktop,yuya-oc/desktop,jnugh/desktop,jnugh/desktop,yuya-oc/desktop,yuya-oc/electron-mattermost,yuya-oc/electron-mattermost,mattermost/desktop,yuya-oc/electron-mattermost,mattermost/desktop,mattermost/desktop,yuya-oc/desktop,mattermost/desktop,mattermost/desktop