Disable nested fields on GraphQL

Currently, this won't work since GraphQL won't allow you to use `->` in field names.

I've looked at possible using something in place of `->` but couldn't figure out how to make it work, so I've left it for now.

docs/resources.md

@@ -126,7 +126,7 @@ You may also run this same command for all resources:
 php please runway:generate-blueprints
 ```
 
-### Storing blueprint fields in a JSON column
+### Nesting fields inside JSON columns
 
 To avoid creating a migration for every new field you add to a blueprint, fields can be stored within a JSON column. To do so, use the `->` symbol within the field handle:
 
@@ -152,7 +152,7 @@ protected $casts = [
 ];
 ```
 
-Please note generating a migration from a blueprint configured in this way is **not** currently supported.
+> **Note:** Currently, Nested Fields aren't be available in GraphQL & aren't supported by the [migration generator](#generating-migrations-from-your-blueprints) command.
 
 ## Configuring resources
 

src/GraphQL/ResourceType.php

@@ -25,6 +25,8 @@ public function fields(): array
             ->mapWithKeys(fn ($value, $key) => [
                 Str::replace('_id', '', $key) => $value,
             ])
+            // TODO: Make nested fields work with GraphQL
+            ->reject(fn ($value, $key) => str_contains($key, '->'))
             ->map(function ($arr) {
                 if (is_array($arr)) {
                     $arr['resolve'] ??= $this->resolver();