v0.4.0

Staged to npm by the release workflow. Approve the staged package to make it live:
https://www.npmjs.com/settings/~/staged-packages

What's Changed

• Ask which AWS profile to use when credentials fail by @antstanley in #9
• Expand a single log line's JSON on click, and replace the stock icon by @antstanley in #11
• Check a chosen profile with STS before offering to log it in by @antstanley in #12
• Release: version packages by @github-actions[bot] in #10

Full Changelog: v0.3.1...v0.4.0