[BUG] {AsuraLightNovel} Can't see description

[Xanvial]

Effected Extension Asura Light Novel

Describe the bug Like mentioned before in my PR in #428 , the current implementation of Madara library doesn't support custom element for Description. In Madara library, the novel description is parsed inside summary__content > p, meanwhile on here it's directly in summary__content

To Reproduce Steps to reproduce the behavior:

1. Go to Asura LIght Novel
2. Click on any novel
3. See that the description is not loaded

Expected behavior Description not loaded

Screenshots If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• OS: Android
• Application Version: 2.2.2
• Extension Version: 1.0.0

Additional context Add any other context about the problem here.