feat: add footer with app version

src/App.vue

@@ -12,6 +12,9 @@ const route = useRoute();
 const injected = injectedModule();
 const targetNetwork = ref(DEFAULT_NETWORK);
 
+const currentYear = new Date().getFullYear();
+const appVersion = __APP_VERSION__;
+
 const web3Onboard = init({
   wallets: [injected],
   chains: Object.values(Networks).map((network) => ({
@@ -32,7 +35,7 @@ if (!connectedWallet) {
 </script>
 
 <template>
-  <div class="p-3 sm:p-4 md:p-8">
+  <main class="p-3 sm:p-4 md:p-8">
     <TopBar />
     <RouterView v-slot="{ Component }">
       <template v-if="Component">
@@ -53,5 +56,10 @@ if (!connectedWallet) {
       </template>
     </RouterView>
     <ToasterComponent :targetNetwork="targetNetwork" />
-  </div>
+  </main>
+  <footer class="mt-20 pt-2 pb-2 border-t border-gray-700 text-center">
+    <div class="flex justify-center items-center">
+      <p class="text-gray-400 text-xs"> Versão: {{ appVersion }} | © {{ currentYear }} P2Pix. Todos os direitos reservados.</p>
+    </div>
+  </footer>
 </template>