Select `is-dark` is Missing States

[Kaylum Lally]

Describe the bug
The select component is missing the states is-error, is-warning & is-success when is-dark.

To Reproduce

1. Add

<div class="nes-select is-dark">
    <select required>
        <option value="" disabled selected hidden>Select...</option>
        <option value="0">To be</option>
        <option value="1">Not to be</option>
    </select>
</div>

2. Try add a class is-error, is-warning or is-success

Expected behavior
Select should show select state when is-dark.

Screenshots
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Environment:
N/A

Suggestion(s) for fixing this issue
N/A

Additional context
N/A

[Kaylum Lally]

Found the issue, have a fix will wait till #385 goes through.

[Kaylum Lally]

Reopening, Closed it and the PR due to confusion.