feat: modules db integration with nuxi module add

[pi0]

• resolves nuxt module add with shortcut for @nuxt #194
• resolves Add nuxt add/rm commands rfcs#31 (from 2019!)

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Beta Testing:

npx nuxi-edge@latst module add <name>

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Search in nuxt/modules database when adding a new module. This allows installing modules as easy as nuxt module add tailwindcss.

Compatibility Checker

This feature checks for possible compatibility issues and confirms whether to continue or not.

nuxi module add axios on a nuxt 3 project:

Offline Usage

In case of network issues, we fall back with a warning and use the input as npm package name without validation. This could be improved later with --preferOffline and a disk cache of modules (to be used also for search functionality). (PR welcome!)

Automatically choosing the right version

Some Nuxt modules use different major versions for different Nuxt versions (such as image Module).

With the introduction of compatibility.versionMap in modules DB (nuxt/modules#770), we can now even match the corresponding version compatible with the local Nuxt version.

nuxi module add image on a nuxt 3 project:

Validate (npm) input

Users can choose to directly use an npm package name (with optional @ constraint) to be installed.

Also in this mode, we try to match explicitly provided npm package names against DB and provide recommendations!

nuxi module add @nuxt/image@^0.6.0 on a nuxt 3 project: