fix: Components that are used shows up as Unused

[metkm]

🐛 The bug

Filtering for unused components shows components that are used as unused. I think (?) it shows only components that are used on the current page

🛠️ To reproduce

https://github.com/metkm/unused-components

🌈 Expected behavior

Shouldn't show used components as not used

ℹ️ Additional context

#358 (comment)
#358 (comment)

[antfu]

This is due to Nuxt was mistakenly warming up all routes, which has been fixed in the latest version, so the currently the inspector only knows the components on the current page.

We will need to add a button like "Scan components for all routes" to allow users to bring the behavior back manually.