Fix: export SimplifyDeep

[tommy-mitchell]

OmitDeep is trying to import SimplifyDeep, which isn't exported:

type-fest/source/omit-deep.d.ts

Line 4 in 8bfcd75

import type {SimplifyDeep} from './merge-deep';

This is causing a build to fail in meow: https://github.com/sindresorhus/meow/actions/runs/8145322629/job/22261300690?pr=252#step:4:20

---

SimplifyDeep should probably be moved to internal.d.ts and have its own type tests added, but that can be done later.

[sindresorhus]

I wonder why this isn't caught by our CI...

[tommy-mitchell]

Maybe it's tsd's defaults? Since the tsconfig ignores the test-d directory, it's being tested with moduleResolution: node:

type-fest/tsconfig.json

Lines 3 to 15 in 8bfcd75

	"compilerOptions": {
	"noEmit": true,
	"target": "ES2019", // Node.js 12
	"lib": [
	"ES2020",
	"DOM"
	],
	"exactOptionalPropertyTypes": true,
	"skipLibCheck": false, // Ensures .d.ts files are checked: https://github.com/sindresorhus/tsconfig/issues/15
	},
	"exclude": [
	"test-d/**/*"
	]

[sindresorhus]

Yeah, that's probably it. Will be fixed when we move to ESM later this year.