Problem

Currently the lint command does not work and the ESLint version 7 and config format are outdated and deprecated.

TypeError: Failed to load plugin '@typescript-eslint' declared in '.eslintrc.cjs': Class extends value undefined is not a constructor or null
Referenced from: /Users/christopherlepski/open-scd/packages/openscd/.eslintrc.cjs

Proposed improvements

• Remove prettier
• Remove Husky precommit hook
• Update ESLint to v9.x and replace deprecated .eslintrc config with eslint.config
• Use Nx Workspaces to share eslint.config between packages and have a single lint command to scan all packages
• Add Lint github action and trigger for PRs