sideEffects settings break the cherry picking usage

[KonnorRogers]

import '@shoelace-style/shoelace/dist/components/button/button.js';

Since the dist/components/button/button.js also imports dist/chunks/*.js which are not marked as sideEffects, which will be tree-shaked in production mode.

Originally posted by @weareoutman in #1450 (comment)

[Antony92]

Can reproduce. New version 2.6.0 broke my production builds :/

I've added comments on something similiar here comment

[claviska]

@Antony92 sorry about that! This should be fixed with #1480. We'll kick off a patch release shortly.