Keep comments in the generated .d.ts file

Author: Septh

package.json

@@ -43,11 +43,12 @@
   "types": "./dist/index.d.ts",
   "scripts": {
     "build": "tsc",
+    "build:dts": "tsc --emitDeclarationOnly --removeComments false",
     "watch": "tsc -w",
     "test": "ava",
     "lint": "eslint source/index.ts",
     "clean": "rimraf dist",
-    "prepublishOnly": "npm run lint && npm run clean && npm run build"
+    "prepublishOnly": "npm run lint && npm run clean && npm run build && npm run build:dts"
   },
   "devDependencies": {
     "@fast-check/ava": "^1.2.1",