fix a conflicting shortcut "D"
fix a conflicting shortcut "D"

- "D" is used for delete action
- open and download have the same place and open has a shortcut key "O"
- this will tell download action to use shortcut key "O" as well

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