Inline images with weighting `immersive` obscure content/ads in the right column

We see images in the body of articles obscure content in the right column in some situations

1) Where the article is rendered in a browser using an ad-blocker. In this scenario the Most Viewed list is stuck to the top of the page
2) If ads are placed in the right column by space-finder then this is not aware that the image is stretching into the right column

Should we add a flag / prop that indicates that at least one image in the article has the `immersive` weighting and pass that through to allow different decisions to be made? E.g.: We could choose to not stick Most Viewed in this situation.

@guardian/commercial-dev ?