Transformed templates lose their bounds

[skycatminepokie]

When calling MapTemplate#transform, any bounds set are lost, leading to the copy generating bounds from scratch. This can lead to unexpected behavior when relying on the size of a template.

I think the fix is just one line before the return:

public MapTemplate transformed(MapTransform transform) {
        // ...
        for (var sourceRegion : this.metadata.regions) {
            result.metadata.regions.add(new TemplateRegion(
                    sourceRegion.getMarker(),
                    transform.transformedBounds(sourceRegion.getBounds()),
                    sourceRegion.getData().copy()
            ));
        }

+        result.setBounds(transform.transformedBounds(this.getBounds()));

        return result;
    }