DRY out Vue.use(Translate)
From [slack](https://gitlab.slack.com/archives/C0GQHHPGW/p1540976617057000) Include `Vue.use(Translate)` in `vue_shared/translate.js`, and remove usages from individual components. > we have 30+ instances of `import Vue from 'vue'; import Translate from '~/vue_shared/translate'; Vue.use(Translate);` Some other discussion of this in https://gitlab.com/gitlab-org/gitlab-ce/issues/43642
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