Spike: replace snowpack

[pascalwilbrink]

At the moment we are using multiple tools for handling monorepos Nx and lerna, also development for the buildtool snowpack has stopped in 2022 and it does not receive updates anymore

• Check if we need all mentioned tools and if the build process can be simplified
• Look for alternatives to snowpack (vite?) and how much effort it would be to replace snowpack
• Discuss scenario's with open source community
• Create stories

Possible scenario (if needed, to be copied over in new issue:
With the new version of Lit (2.2.7), we can start using rollup as a bundler. Snowpack is not supported any longer.
Example:

https://github.com/openscd/open-scd-core

Todo:
Migrate to Rollup
- Remove Snowpack
- Create rollup configuration
- Start using web-dev-server (dependency)
- npm start should still work with the index.html

Acceptance criteria:

• No usage of Snowpack any longer
• Build output should keep the hierarchy / directory tree (tree shaking is nog possible in order to load plug-in dynamicly)

[Sander3003]

Covert it into a spike: create a POC for the things above.

[Sander3003]

Relates to #1653

[Sander3003]

We will role with vite.