[add:dash.html] [mod:dash.html, custom.css] Add dashboard page and modify the dash.html

Add dash.html file as the dashboard and modified the content of the page
using html and by adding and modifiying style rules in custom.css. Also
add find_user1.png to the assets/img folder.
Merge branch 'master' of https://github.com/kasunkv/MoDACA
[mod:sql-queries.txt] Small modification