Move remaining dev tool config files into @kumahq/config

[johncowen]

Description

Follow up to #3176

---

We moved the most useful config files into @kumahq/config which gave us some immediate improvements. But we've decided to move on with some feature work and continue on with moving config into @kumahq/config at a later date.

We should also move:

• Vite ./packages/*/viteconfig.*.ts
• Vitepress ./.vitepress/config.*.ts (and related)
• Makefiles ./mk/
• lint-staged lintstagedrc.json
• (maybe more)

And eventually @kumahq/config should become the default for dev tooling configuration files for our application.