guide:keycode is wrong for backspace f1---f12
guide:fixed backspace key cannot simulate_input
guide:update
guide:only LauncherSearch page can simulate_input
guide:simulate_input timeout 200-->20
res:launcher:: fix launch and uninstall problem.

1. fix launch the application which on the subdirectory of applications will fail.
2. fix the app which is uninstalling will be shown on searching.
Merge branch 'develop' of https://github.com/linuxdeepin/dde into develop