Add listener to listen chain change and update store network name state, also start refactor with getProvider function

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

src/blockchain/provider.ts

@@ -0,0 +1,15 @@
+import { ethers } from "ethers";
+import { useEtherStore } from "@/store/ether";
+
+const getProvider = (): ethers.providers.Web3Provider | null => {
+    const etherStore = useEtherStore();
+
+    const window_ = window as any;
+    const connection = window_.ethereum;
+  
+    if (!connection) return null;
+  
+    return new ethers.providers.Web3Provider(connection);
+};
+
+export { getProvider }