feat: migrate from `eslint-flat-config-viewer`

[antfu]

Migrate from https://github.com/antfu/eslint-flat-config-viewer

Todolist:

• [x] Renaming things
• [x] Release script

[linux-foundation-easycla[bot]]

The committers listed above are authorized under a signed CLA.

• :white_check_mark: login: antfu / name: Anthony Fu (cc4b7a01f39c0f37e102019c2401d146529ed575, ec766c5862d9b8be4d15c15fdde313030306ab82)