[Enhance][Bug fix] Support skill_maya & World mode value display bug

- Add support for the skill 'skill_maya'
- Fix a bug that some characters' skill cannot display proper values in world mode progression
- Fix a bug that 'skill_mithra' results in adding `prog` value instead of world mode progress
- For Arcaea 4.7.0

latest version/database/init/packs.json

@@ -718,5 +718,23 @@
 		],
 		"orig_price": 500,
 		"price": 500
+	},
+	{
+		"name": "eden",
+		"items": [
+			{
+				"type": "pack",
+				"id": "eden",
+				"is_available": true
+			},
+			{
+				"type": "core",
+				"amount": 5,
+				"id": "core_generic",
+				"is_available": true
+			}
+		],
+		"orig_price": 500,
+		"price": 500
 	}
 ]