Describe the bug

The example Webpack / Rollup config linked to in the bundling section of the installation page will only work for an NPM based project, not Yarn or any other PnP / monorepo setup.

The Webpack config can be made to work with any setup that correctly modifies the resolver by changing the line

from: path.resolve(__dirname, 'node_modules/@shoelace-style/shoelace/dist/assets'),

to

from: path.join(path.dirname(require.resolve(`@shoelace-style/shoelace/dist/shoelace.js`)), "assets"),

(see this note in the CopyWebpackPlugin docs) This relies on the "showlace.js" file exported in Showlace's package.json being in the same directory as the "assets" folder which seems a bit messy but I could not find a better way since you cannot "resolve" a folder in CommonJS.

I have never used Rollup so I am not sure what the best way to achieve the same in Rollup would be. Perhaps someone more familiar can advise.

Alternatively we could add a mention in the Shoelace documentation or as a comment in the config files that this is something to consider when not installing with NPM.

Happy to do a PR on the Webpack example repo with this change if that is the agreed solution.