VE-1620: Apply ve-ce-noHighlight not only to the paragraph (which is a wrapper) but also to all element children.

This is to solve a problem when some HTML elements are using in the caption - for instance bold or italic.

https://wikia-inc.atlassian.net/browse/VE-1620
Merge pull request #5218 from Wikia/VE-1620

VE-1620: Apply ve-ce-noHighlight not only to the paragraph (which is a wrapper) but also to all element children.