[*] Feature: Check undeclared dependencies in build

[etrepum]

Description

It's easy to add inter-package dependencies in the monorepo that can cause problems for npm users.

Closes #6572

Test plan

Before

Packages could have undeclared inter-package dependencies that go unchecked

After

The build fails when these inter-package dependencies are not declared

❯ npm run build

> @lexical/[email protected] build
> node scripts/build.js

Error: packages/lexical-yjs/src/SyncCursors.ts has an undeclared dependency in its import of @lexical/selection.
Add the following to the dependencies in packages/lexical-yjs/package.json: "@lexical/selection": "0.17.1"

[vercel]

The latest updates on your projects. Learn more about Vercel for Git ↗︎

Name	Status	Preview	Comments	Updated (UTC)
lexical	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Aug 28, 2024 7:10pm
lexical-playground	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Aug 28, 2024 7:10pm

[github-actions]

size-limit report 📦

Path	Size
lexical - cjs	29.38 KB (0%)
lexical - esm	29.22 KB (0%)
@lexical/rich-text - cjs	37.87 KB (0%)
@lexical/rich-text - esm	31.08 KB (0%)
@lexical/plain-text - cjs	36.45 KB (0%)
@lexical/plain-text - esm	28.44 KB (0%)
@lexical/react - cjs	39.64 KB (0%)
@lexical/react - esm	32.52 KB (0%)