improvement when finding the "coast" smithing template

This smithing template is usually found in the chests of wrecked ships with a 16% drop chance per chest.

What I propose is that this template can also be found in treasure chests, since they have a lot to do with ships, since there you find the treasure map and the truth is that it makes sense that it can also be found in treasure chests.

I also propose that as with other structures I also increase the probability of finding this template, an example could be that I increase the probability to 50%