Remove use(Plugin) at import

[kikuomax]

Description

Please remove use(Plugin) lines in individual components, which are executed when components are imported. The following is an example in Tag:

buefy-next/packages/buefy-next/src/components/tag/index.js

Line 13 in decc2c0

use(Plugin)

Why Buefy need this feature

use(Plugin) does not make sense in Vue 3 without any app context. I think these lines would prevent tree-shaking.