fixes #181 - integrated store listing page with main app page

[djmgit]

fixes issue #181. Now on clicking the apps on main page
the store listing page will be loaded.

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[djmgit]

Test link : http://loklakapps.surge.sh/
Select whatsTrending app (the last one)

The store listing page will be shown properly for majority of the other apps once PR: #178 is merged.

@kavithaenair @Achint08 @SKrPl open for review

[daminisatya]

@djmgit Resolve the requested changes for the PR #178 and it's good to go. I can see the changes.