[select] fix(Select, MultiSelect): load icons statically

[tonooo71]

related to #6249

Checklist

• Includes tests
• Update documentation

Changes proposed in this pull request:

Select and MultiSelect components were dynamically loading icons, modified to load them statically.

Reviewers should focus on:

• Whether the appropriate icons are being loaded.
• Whether there are any other locations that are dynamically loading icons.

Best regards.

[palantirtech]

Thanks for your interest in palantir/blueprint, @tonooo71! Before we can accept your pull request, you need to sign our contributor license agreement - just visit https://cla.palantir.com/ and follow the instructions. Once you sign, I'll automatically update this pull request.

[adidahiya]

looks good in docs preview 👍🏽

[gluxon]

This is great. Thanks!