Fix #3424 Merge concept_card_fragment into single xml file

[vrajdesai78]

Explanation

I have merged concept_card_fragment.xml file into single file. I have added values in dimens.xml according to screen sizes.

Screenshots before merging into single file.

Screenshots after merging into single 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 Suggested nit changes.

[vrajdesai78]

@rt4914 I have done required changes. Kindly review it.

[rt4914]

LGTM, thanks.

[rt4914]

@vrajdesai78 Please make sure that the comments are resolved by the person who started them. You can comment on the threads mentioning if you have addressed it or not.

[oppiabot]

Unassigning @rt4914 since they have already approved the PR.