docs: Add note/link about i18n-t,… on components api page

[manuelmeister]

Describe the feature

We should add a note about the Vue-I18N Components on this page: https://i18n.nuxtjs.org/docs/api/components Otherwise users can't know about theses components that are also available besides <NuxtLinkLocale> and <SwitchLocalePathLink>.

Additional information

• [ ] Would you be willing to help implement this feature?
• [ ] Could this feature be implemented as a module?

Final checks

• [X] Read the contribution guide (The contribution guideline of nuxt-modules/i18n is compliant with Nuxt too).
• [X] Check existing discussions and issues.

[kazupon]

It would be good to have a page linking to the documentation on the features provided by vue-i18n.