Changed package to an ES module

[morfert]

I was getting vue ssr error module not found errors and ultimately ended up updating the package.json to be of "type": "module". This also required updating the import and export statements. The ssr errors have now stopped for me.

[Valian]

Hi, thanks for your contribution! Let me look into this. I also tried making that change but in the end something didn't work properly. live_vue package is consumed by multiple clients:

• Vite configuration
• app.js
• SSR bundle

and they have different requirements about ES modules (JS ecosystem is a fck mess when it comes to that).

[Valian]

I'm closing this PR. After #32 I'm compiling all the files before publishing and they have now a consistent import / export usage.

Also, package.json explicitly says these files should be imported, not required:

"exports": {
        "./vitePlugin": {
            "import": "./priv/static/vitePlugin.js",
            "types": "./priv/static/vitePlugin.d.ts"
        },
        "./server": {
            "import": "./priv/static/server.js",
            "types": "./priv/static/server.d.ts"
        },
        ".": {
            "import": "./priv/static/index.js",
            "types": "./priv/static/index.d.ts"
        }
    }

Hopefully these should resolve all the errors!