refactor: update song package.json to support separate build scripts for Node and browser environments

Author: tomast1337

packages/song/package.json

@@ -1,19 +1,23 @@
 {
   "name": "@nbw/song",
-  "main": "dist/index.js",
-  "module": "dist/index.js",
+  "main": "dist/index.node.js",
+  "module": "dist/index.node.js",
   "types": "dist/index.d.ts",
   "type": "module",
   "private": true,
   "exports": {
     ".": {
-      "import": "./dist/index.js",
+      "browser": "./dist/index.browser.js",
+      "node": "./dist/index.node.js",
+      "import": "./dist/index.node.js",
       "types": "./dist/index.d.ts",
       "development": "./src/index.ts"
     }
   },
   "scripts": {
-    "build": "bun run clean && bun build src/index.ts --outdir dist --target node && bun run build:types",
+    "build": "bun run clean && bun run build:node && bun run build:browser && bun run build:types",
+    "build:node": "bun build src/index.ts --outdir dist --target node && mv dist/index.js dist/index.node.js",
+    "build:browser": "bun build src/index.ts --outdir dist --target browser && mv dist/index.js dist/index.browser.js",
     "build:types": "tsc --project tsconfig.build.json",
     "clean": "rm -rf dist",
     "dev": "bun build src/index.ts --outdir dist --target node --watch",