Unused dependencies check does not consider Elm code in node_modules

[sentience]

In our codebase, source-directories points to some libraries in node_modules:

    "source-directories": [
        ".",
        "../../../../lib/client/modules/ca-ui",
        "../../../../lib/client/modules/ca-utils",
        "../../../../node_modules/elm-upgrade-shims/lib-0.19",
        "../../../../node_modules/@kaizen/component-library/draft",
        "../../../../node_modules/@kaizen/component-library/components"
    ],

Since #22, elm-analyze doesn't scan files in node_modules, which is fine by us.

Unfortunately, some of the dependencies in elm.json may be consumed by some of the Elm modules in node_modules. We are therefore seeing false-positive “Unused dependencies” results.

Ideally, the "Unused dependencies" check should factor in Elm code in node_modules, even if the check results exclude it.

An interim work-around for us would also be the option to disable the "Unused dependencies" check, which does not currently seem to be possible in elm-analyse.json.