Action center: bridge completion notification renders raw i18n interpolation keys instead of values

[linear]

The "Bridge complete" action center notification displays literal interpolation placeholders instead of the resolved values. All four variables fail to interpolate.

Expected: Your bridge of 1 ETH.ARB to 1 ETH.ETH is complete.

Actual: Your bridge of %{sellAmountAndSymbol}.%{sellChainShortName} to %{buyAmountAndSymbol}.%{buyChainShortName} is complete.