Fix ESM/CJS problems

[0x009922]

List of changes

• Fix @iroha2/crypto-target-web → @iroha2/crypto-core dependency - change dev to prod

• Define packages exports with exports field too. Also use .mjs for ESM and .cjs for CJS bundles.

• Drop API Extractor and esbuild. Use rollup for everything.

  API Extractor broke after moving to tsconfig paths monorepo approach. It was done to define actual packages main/module/exports fields in their package.json. I moved to Rollup and rollup-plugin-dts.

  esbuild doesn't eliminate dead code in case like if (undefined) - proof. It brokes in-source testing by Vitest. Thus, I moved again to Rollup.

• Drop @iroha2/client-isomorphic-*. Instead client library provides additional entrypoints for isomorphic adapters, like it is done at isomorphic-git.

  For WebSocket, it has 2 entrypoints:

  // where native `WebSocket` exists
  import { adapter } from '@iroha2/client/web-socket/native'
  
  // Uses `ws` package for node.js
  import { adapter } from '@iroha2/client/web-socket/node'
  
  new Client({ ws: adapter })

  fetch could be provided in the same way, but @iroha2/client does not provide it by itself. There are node-fetch and undici packages that could solve it:

  import { fetch } from 'undici'
  import fetch from 'node-fetch'
  
  new Client({ fetch })

• E2e tests - Migrate to Cypress 10