[usecase-webapi] Improve Application usecase

- Change "launch successfully" to "Please checking the app launched on GUI and service process commandline".
- Change "Kill APP" to "kill App".
- Show the current app info by default.
- Show static dialog for the list all info, using scroll bar.
- Change app information to table.
- Fail Reason: get context list fail.

Impacted TCs num(approved): New 0, Update 1, Delete 0
Unit test Platform: [Tizen-IVI]
Test result summary: Pass 0, Fail 1, Blocked 0