fix: set ws as optional dependency

[filipecabaco]

What kind of change does this PR introduce?

set ws as optional dependency so users can exclude them when using react native with npm install --omit=optional

[aldebout]

I tried a pnpm override with this branch but I get Error: Cannot find module '/.../node_modules/@supabase/realtime-js/scripts/remove-ws-if-expo.js'.

Maybe you need to add scripts to the file list in package.json?

[filipecabaco]

yes 👍 just got the same error on a test repo 🤦

[filipecabaco]

made the change will test on project

[filipecabaco]

having postinstall for now it was a bad move, first getting smaller change to use npm omit optional

[filipecabaco]

I'm doing the following:
In https://github.com/haeniya/supabase-realtime-repro.git

1. Set package.json to git://github.com/supabase/supabase-js.git#fix/realtime-optional-ws

{
  "name": "supabase-realtime-repro",
  "version": "1.0.0",
  "main": "index.js",
  "scripts": {
    "start": "expo start",
    "android": "expo start --android",
    "ios": "expo start --ios",
    "web": "expo start --web"
  },
  "dependencies": {
    "@react-native-async-storage/async-storage": "^2.1.0",
    "@supabase/supabase-js": "git://github.com/supabase/supabase-js.git#fix/realtime-optional-ws",
    "aes-js": "^3.1.2",
    "expo": "~52.0.11",
    "expo-secure-store": "~14.0.0",
    "expo-status-bar": "~2.0.0",
    "react": "18.3.1",
    "react-native": "0.76.3",
    "react-native-get-random-values": "^1.11.0"
  },
  "devDependencies": {
    "@babel/core": "^7.20.0",
    "@types/react": "~18.3.12",
    "typescript": "^5.3.3"
  },
  "private": true
}

2. Run npm i --omit=optional to not install ws as it will be a optional dependency

3. npm start and use iOS

unfortunately got the following error