Fixes #3465 Merge completed activity into single file

[vrajdesai78]

Explanation

I have merged completed_story_item and completed_story_list_fragment into single files by giving it's dimension in dimens.xml file.

Checklist

• The PR title starts with "Fix #bugnum: ", followed by a short, clear summary of the changes. (If this PR fixes part of an issue, prefix the title with "Fix part of #bugnum: ...".)
• The PR explanation includes the words "Fixes #bugnum: ..." (or "Fixes part of #bugnum" if the PR only partially fixes an issue).
• The PR follows the style guide.
• The PR does not contain any unnecessary auto-generated code from Android Studio.
• The PR is made from a branch that's not called "develop".
• The PR is made from a branch that is up-to-date with "develop".
• The PR's branch is based on "develop" and not on any other branch.
• The PR is assigned to an appropriate reviewer in both the Assignees and the Reviewers sections.

[rt4914]

@vrajdesai78 I think you will need to update your branch by merging with latest develop.

[vrajdesai78]

@rt4914 Please review my pull request

[rt4914]

@vrajdesai78 PTAL.

Thanks.

[rt4914]

@vrajdesai78 Please do not resolve comments. Actually you should reply to the comments mentioning whether they are done or not and based on your reply I will review it and then if needed I will resolve the comment.

[rt4914]

LGTM, thanks.

[vrajdesai78]

@vrajdesai78 Please do not resolve comments. Actually you should reply to the comments mentioning whether they are done or not and based on your reply I will review it and then if needed I will resolve the comment.

Ok next time I won't resolve comments. Thank you for merging my pull request.