add connect to ethers provider function and use pinia as ether params store

Co-authored-by: geovanne97 <geovannessaraiva97@gmail.com>
Co-authored-by: brunoedcf <brest.dallacosta@outlook.com>

src/main.ts

@@ -1,11 +1,13 @@
 import { createApp } from "vue";
 import App from "./App.vue";
 import router from "./router";
+import { createPinia } from "pinia";
 
 import "./assets/main.css";
 
 const app = createApp(App);
 
 app.use(router);
+app.use(createPinia());
 
 app.mount("#app");