Specify that optimization.splitChunks.chunks: "all" only extracts common dependencies when they are big enough

[adriancuadrado]

https://webpack.js.org/guides/code-splitting/#splitchunksplugin

The SplitChunksPlugin allows us to extract common dependencies into an existing entry chunk or an entirely new chunk.
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With the optimization.splitChunks configuration option in place, we should now see the duplicate dependency removed from our index.bundle.js and another.bundle.js.

The documentation is misleading because it doesn't mention that the common dependencies are extracted to another chunk only if it is big enough.