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/store/ether.ts

@@ -0,0 +1,21 @@
+import type { ethers } from "ethers";
+import { defineStore } from "pinia";
+
+export const useEtherStore = defineStore("ether", {
+  state: () => ({
+    walletAddress: "",
+    balance: 0,
+    provider: null as ethers.providers.Web3Provider | null,
+  }),
+  actions: {
+    setWalletAddress(walletAddress: string) {
+      this.walletAddress = walletAddress;
+    },
+    setBalance(balance: number) {
+      this.balance = balance;
+    },
+    setProvider(provider: ethers.providers.Web3Provider | null) {
+      this.provider = provider;
+    },
+  },
+});