module: add :lang graphql

This module enables GraphQL[1] usage within Doom with extended
functionality.

[1] https://www.graphql.org

init.example.el

@@ -134,6 +134,7 @@
        ;;fstar             ; (dependent) types and (monadic) effects and Z3
        ;;gdscript          ; the language you waited for
        ;;(go +lsp)         ; the hipster dialect
+       ;;(graphql +lsp)    ; Give queries a REST
        ;;(haskell +lsp)    ; a language that's lazier than I am
        ;;hy                ; readability of scheme w/ speed of python
        ;;idris             ; a language you can depend on