[js/web] remove "node": null in export table (microsoft#22618)

### Description

This change resolves issue No.3 described in microsoft#22615

Author: fs-eire

js/web/package.json

@@ -78,25 +78,21 @@
       "types": "./types.d.ts"
     },
     "./all": {
-      "node": null,
       "import": "./dist/ort.all.bundle.min.mjs",
       "require": "./dist/ort.all.min.js",
       "types": "./types.d.ts"
     },
     "./wasm": {
-      "node": null,
       "import": "./dist/ort.wasm.min.mjs",
       "require": "./dist/ort.wasm.min.js",
       "types": "./types.d.ts"
     },
     "./webgl": {
-      "node": null,
       "import": "./dist/ort.webgl.min.mjs",
       "require": "./dist/ort.webgl.min.js",
       "types": "./types.d.ts"
     },
     "./webgpu": {
-      "node": null,
       "import": "./dist/ort.webgpu.bundle.min.mjs",
       "require": "./dist/ort.webgpu.min.js",
       "types": "./types.d.ts"