Deprecate project builds except modern ES Modules, CommonJS and Types

[JohnAlbin]

Next-Drupal currently creates the following builds with microbundle:

• .d.ts TypeScript types — Used by the types field in package.json
• .esm.js ES Modules (ES5) — Used by the module field in package.json
• .js CommonJS modules — Used by the main field in package.json
• .modern.js ES Modules (w/ Babel bugfixes mode) — Not referenced in package.json
• .modern.mjs ES Modules (w/ Babel bugfixes mode) for Node.js — Not referenced in package.json
• .umd.js UMD module — Not referenced in package.json

I'd recommend we only need:

• TypeScript types
• modern ES Modules
• modern CommonJS (Node.js v16 was just deprecated, so Node.js v18 or later)

We need to ensure that existing entry points work the same (for the builds we keep).

Related docs:

• https://www.typescriptlang.org/docs/handbook/esm-node.html#packagejson-exports-imports-and-self-referencing
• https://nodejs.org/api/packages.html#package-entry-points
• https://nodejs.org/api/packages.html#packagejson-and-file-extensions