make @metamask/vault-decryptor site publishable

[Unik0rnMaggie]

Make @metamask/vault-decryptor site publishable

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Note

Makes the package publishable on npm.

• Removes private to allow publishing
• Adds files to include index.html and bundle.js
• Adds publishConfig with public access and npm registry

^{Written by Cursor Bugbot for commit 6a063e6. This will update automatically on new commits. Configure here.}

[cursor]

Main entry point file excluded from published package

Medium Severity

The files array specifies only index.html and bundle.js to be included in the published package, but the main field still references index.js, which won't be published. When consumers try to require('@metamask/vault-decryptor'), npm will attempt to load index.js and fail because that file doesn't exist in the published package. The main field should either be removed, updated to point to an included file, or index.js (and its dependencies in lib/ and app/) should be added to files.