feat: build package with type definitions

Author: ahnpnl

package.json

@@ -7,6 +7,7 @@
     "node": "^14.15.0 || >=16.10.0"
   },
   "main": "build/index.js",
+  "typings": "build/index.d.ts",
   "repository": {
     "type": "git",
     "url": "git+https://github.com/thymikee/jest-preset-angular.git"

src/serializers/ng-snapshot.ts

@@ -70,4 +70,4 @@ const test: OldPlugin['test'] = (val) => !!val && typeof val === 'object' && 'co
 export = {
     print,
     test,
-} as OldPlugin;
+};

tsconfig.build.json

@@ -4,7 +4,8 @@
     "outDir": "./build",
     "allowJs": true,
     "removeComments": true,
-    "stripInternal": true
+    "stripInternal": true,
+    "declaration": true
   },
   "include": ["src"],
   "exclude": ["**/*.spec.ts", "src/transformers/jit_transform.js"]