fix a typo in sharedlink dialog
fix a typo in sharedlink dialog

daodaoliang/seafile-client,losingle/seafile-client,haiwen/seafile-client,wgaalves/seafile-client,losingle/seafile-client,lucius-feng/seafile-client,wgaalves/seafile-client,daodaoliang/seafile-client,daodaoliang/seafile-client,haiwen/seafile-client,losingle/seafile-client,daodaoliang/seafile-client,wgaalves/seafile-client,haiwen/seafile-client,lucius-feng/seafile-client,wgaalves/seafile-client,haiwen/seafile-client,lucius-feng/seafile-client,lucius-feng/seafile-client,losingle/seafile-client