added feature to register team

src/model/ItemData.ts

@@ -0,0 +1,16 @@
+export interface ItemData {
+  id: number;
+  name: string;
+  image: string;
+  effect?: ItemEffect,
+}
+
+export interface ItemEffect {
+  attack?: number;
+  defense?: number;
+  special_attack?: number;
+  special_defense?: number;
+  speed?: number;
+  condition?: string;
+  type?: number;
+}