Remove graphql-tag dependency from docs

[akd-io]

Apollo Client v3 comes with an export of graphql-tag.

The @apollo/client package includes graphql-tag as a dependency and re-exports gql. To simplify your dependencies, we recommend importing gql from @apollo/client and removing all graphql-tag dependencies.

https://www.apollographql.com/docs/react/migrating/apollo-client-3-migration/#graphql-tag

I've refactored all occurrences in the docs to use the gql tag of @apollo/client except in the recommended list on the @nhost/nuxt page, where I'm unsure if it's still useful, as I'm not well-versed in Vue-land. I quote:

Other recommended NPM packages: nhost-js-sdk @nuxtjs/apollo graphql-tag

All occurrences can be found here:
https://github.com/nhost/docs/search?q=graphql-tag

Hope this is useful, and thank you so much for this wonderful platform!

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[elitan]

Perfect!

Related to what we need to do with our @nhost/react-apollo package: nhost/react-apollo#7