fix: handle loadURL() failures correctly (#1093)

static/views/splash.html

@@ -6,6 +6,7 @@
             background: none;
             user-select: none;
             -webkit-app-region: drag;
+            overflow: hidden;
         }
 
         .wrapper {
@@ -20,6 +21,14 @@
             background: var(--bg);
         }
 
+        .message {
+            top: 70%;
+            word-break: break-word;
+            padding: 0 16px;
+            position: absolute;
+            font-size: 14px
+        }
+
         p {
             text-align: center;
         }
@@ -41,5 +50,15 @@
             role="presentation"
         />
         <p>Loading Vesktop...</p>
+        <p class="message"></p>
     </div>
 </body>
+
+<script>
+    document.addEventListener("DOMContentLoaded", () => {
+        const messageElement = document.querySelector('.message');
+        VesktopSplashNative.onUpdateMessage(message => {
+            messageElement.textContent = message;
+        })
+    });
+</script>