Use JSONField instead of CharField for sprites

The models affected were PokemonFormSprites and ItemSprites. This was
done to ensure they are properly returned when querying those tables
with Hasura.

data/v2/build.py

@@ -499,9 +499,7 @@ def _build_items():
 
         item_sprites = "items/{0}"
         sprites = {"default": file_path_or_none(item_sprites.format(file_name))}
-        yield ItemSprites(
-            id=int(info[0]), item_id=int(info[0]), sprites=json.dumps(sprites)
-        )
+        yield ItemSprites(id=int(info[0]), item_id=int(info[0]), sprites=sprites)
 
     build_generic((ItemSprites,), "items.csv", csv_record_to_objects)
 
@@ -2024,7 +2022,7 @@ def _build_pokemons():
             ),
         }
         yield PokemonFormSprites(
-            id=int(info[0]), pokemon_form_id=int(info[0]), sprites=json.dumps(sprites)
+            id=int(info[0]), pokemon_form_id=int(info[0]), sprites=sprites
         )
 
     build_generic((PokemonFormSprites,), "pokemon_forms.csv", csv_record_to_objects)

pokemon_v2/migrations/0016_auto_20231126_1258.py

@@ -0,0 +1,22 @@
+# Generated by Django 3.1.14 on 2023-11-26 12:58
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("pokemon_v2", "0015_auto_20231121_1209"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="itemsprites",
+            name="sprites",
+            field=models.JSONField(),
+        ),
+        migrations.AlterField(
+            model_name="pokemonformsprites",
+            name="sprites",
+            field=models.JSONField(),
+        ),
+    ]

pokemon_v2/models.py

@@ -882,7 +882,7 @@ class ItemGameIndex(HasItem, HasGeneration, HasGameIndex):
 
 
 class ItemSprites(HasItem):
-    sprites = models.CharField(max_length=1000)
+    sprites = models.JSONField()
 
 
 ####################
@@ -1716,7 +1716,7 @@ class PokemonFormName(HasPokemonForm, IsName):
 
 
 class PokemonFormSprites(HasPokemonForm):
-    sprites = models.CharField(max_length=1000)
+    sprites = models.JSONField()
 
 
 class PokemonGameIndex(HasPokemon, HasGameIndex, HasVersion):