[nuxt] Add `postcss-preset-env` by default to nuxt
enhancement馃嵃 p2-nice-to-have
# [nuxt] Add `postcss-preset-env` by default to nuxt
Nuxt does not clean up CSS after navigation (and injects CSS pre-navigation)
pending triagebug馃敤 p3-minorperformance
CSS Variables IE11 only detected when declared in same file
stalepending triage2.x
CSS native variablles can't be modified inside media queries
pending triage2.x