Highlight the Market Fee Reward better

With the introduction of the market fee reward there have been numerous assets taking advantage of this type of leverage to attract volume. However, the UI does not take advantage of this to guide the user to assets with high rewards. It's only visible on the asset details page.

We should find a good strategy to display this when users search for assets to trade. There are several places, while some may be difficult and are part of other suggestions for improvements as well.

1. The assets page under explorer as another column. Low impact and good visibility.
2. The "main page" with assets as another column. Low impact and good visibility.
3. The "exchange page". In the Buy/Sell form we should highlight the market_fee_reward return somewhere. Risks are small spaces and to much information.
4. The "my markets" list. As this space is small, we could add a "rewards" sign to assets in the list, to signal it has a market_fee_reward. A tooltip could display the actual value.

These are the spots I can think of now. Ideas or suggestions?

Start by reviewing the asset listings under Explorer, the main assets page, the exchange Buy/Sell form, and the “my markets” list mentioned in the issue. Compare how each surface could expose market_fee_reward without overcrowding the UI. Done means agreeing on a concrete display strategy and implementing the selected locations with a clear value or reward indicator.

Written by the indexing model from the issue text.