Fix #1562: Bug fix promoted story list

[rt4914]

Explanation

Fixes #1562

In #1554 we noticed one issue, if user have progress in old stories but not in recent stories, the home screen promoted stories looks empty but the RecentlyPlayedActivity looks correct. So to fix this I have optimised the logic a bit.

1. If there are recent stories, only recent stories will be show in HomeActivity and not the old-stories.
2. If there are no recent stories, then old stories will be show in HomeActivity as recent stories, because that's the most recent stories from user perspective.

This will further be improvised once we have Recommended Stories in place as part of #936

How to test

Using StoryProgressTestHelper make partial progress but as old story using following code.

   storyProgressTestHelper.markPartialStoryProgressForFractions(profileId, true)
   storyProgressTestHelper.markTwoPartialStoryProgressForRatios(profileId, true)

Screenshot

Checklist

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[anandwana001]

LGTM, Thanks