browser open from desktop-notify
change operation timing of initScrollbars method

・after finishing sender panel show
・after finishing sender panel hide
Merge pull request #38 from haushinka2dx/open-from-notify

browser open from desktop-notify
Merge pull request #39 from ip-s-pra/change_timing_initScrollbars

change operation timing of initScrollbars method
Merge branch 'master' into starter