Docs build broken by @apify/ui-library >=1.120.0 (SSG M7 module resolution error)

[vdusek]

Problem

The docs build (SSG) fails when @apify/ui-library is updated from 1.119.0 to 1.120.0+. This was discovered in the lock file maintenance PR #605 where it was updated to 1.121.0.

Error

TypeError: Cannot read properties of undefined (reading 'M7')
    at Object.M7 (server.bundle.js:101183:72)
    at 71698 (server.bundle.js:97923:148)
    at __webpack_require__ (server.bundle.js:154639:31)
    ...

Root Cause

@apify/ui-library 1.120.0+ introduces a regression that causes a module resolution failure (M7 chunk) during Server-Side Generation (SSG) when the experimental Rspack bundler is enabled via @docusaurus/faster in docusaurus.config.js.

@apify/ui-library is a transitive dependency pulled in by @apify/docs-theme.

Workaround

@apify/ui-library is pinned to <1.120.0 using a resolutions field in website/package.json.

Resolution

Once @apify/ui-library fixes the SSG/Rspack compatibility issue, the resolution override should be removed.