Show proper tag on slippage for Portals Trades

[tolltalcrypto]

Context [Author]

We are showing a "Custom" slippage tag for all Portals trades, when it should be set to Auto.

Reproduction [Author]

Get to confirm details on Portals trade inside swapper. Expand details, and observe the custom tag.

Screenshots, video [Author]

AC

Ensure that the proper slippage tag is shown in the expanded details of a trade.

Rough how to fix [Eng]

Breakdown a path to solve for acc or any reference material, docs. A place for estimation notes or initial comments for solutions.