feat: initialized wails structure

frontend/src/main.js

@@ -0,0 +1,43 @@
+import './style.css';
+import './app.css';
+
+import logo from './assets/images/logo-universal.png';
+import {Greet} from '../wailsjs/go/main/App';
+
+document.querySelector('#app').innerHTML = `
+    <img id="logo" class="logo">
+      <div class="result" id="result">Please enter your name below 👇</div>
+      <div class="input-box" id="input">
+        <input class="input" id="name" type="text" autocomplete="off" />
+        <button class="btn" onclick="greet()">Greet</button>
+      </div>
+    </div>
+`;
+document.getElementById('logo').src = logo;
+
+let nameElement = document.getElementById("name");
+nameElement.focus();
+let resultElement = document.getElementById("result");
+
+// Setup the greet function
+window.greet = function () {
+    // Get name
+    let name = nameElement.value;
+
+    // Check if the input is empty
+    if (name === "") return;
+
+    // Call App.Greet(name)
+    try {
+        Greet(name)
+            .then((result) => {
+                // Update result with data back from App.Greet()
+                resultElement.innerText = result;
+            })
+            .catch((err) => {
+                console.error(err);
+            });
+    } catch (err) {
+        console.error(err);
+    }
+};