Fix - Rollup build

[gentslava]

Rollup build config changes:

• Removed rollup-plugin-serve in rollup.config.js -> Error https://github.com/PiotrMachowski/lovelace-xiaomi-vacuum-map-card/pull/687/checks#step:4:62 passed.
• Added package-lock and npm ci for more stable and fast GitHub Actions build.

[gentslava]

Hello @PiotrMachowski
I've added changes to production files. Please, review it.
It should fix Rollut build and make GHA more stable and a little faster 😊
I haven't touch the rollup.config.dev.js and it still has same error on npm start cause of rollup-plugin-serve package.

[gentslava]

Hi @PiotrMachowski
You can check it and re-run GHA. I've regenerated package-lock with the Node v14.
In the prev commit I forgot to revert it after I've tried Node lts :D

[gentslava]

It works again 🎉
Now you can merge it. And I'll rebase branch with translation changes in PR #687 to make it buildable in GHA.

[PiotrMachowski]

Thanks, @gentslava!