[usecase-webapi] Improve AppURL usecase

- Group the url info in a div, and Add a get button.

Impacted TCs num(designed): New 0, Update 1, Delete 0
Unit test Platform: Tizen M0,Tizen IVI
Tizen test result summary: Pass 1, Fail 0, Blocked 0
Merge pull request #579 from xinliux/xinliux/usecase/appurl-improve

[usecase-webapi] Improve AppURL usecase