Make installed apps appear instantly on the home screen

Update app installation to trigger instant home screen updates via postMessage and ensure apps open correctly within the Nexa browser frame.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 9d4157c5-3aaa-42eb-948c-782340830561
Replit-Commit-Checkpoint-Type: intermediate_checkpoint
Replit-Commit-Event-Id: 35cb3148-74a7-4124-809e-803461c46b67
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/3b12fe82-08c9-4f4d-bbd8-39c248923097/9d4157c5-3aaa-42eb-948c-782340830561/6fNReKI
Replit-Helium-Checkpoint-Created: true

appstore.html

@@ -661,13 +661,16 @@
                     name: app.name, 
                     icon: app.icon, 
                     color: app.color,
-                    url: app.url // Ensure URL is saved for the Home Screen to use
+                    url: app.url
                 });
                 localStorage.setItem('homeScreenApps', JSON.stringify(homeApps));
             }
             
+            if (window.parent !== window) {
+                window.parent.postMessage({ type: 'install_app_instant', appId: appId }, '*');
+            }
+            
             showToast('Installed!');
-            setTimeout(() => location.reload(), 500);
         }
 
         async function updateApp(appId) {

index.html

@@ -15135,7 +15135,7 @@
             // Check for installed .lunpkg apps first
             const installedApps = JSON.parse(localStorage.getItem("installed_lunpkg_apps") || "{}");
             if (installedApps[appId]) {
-                const pkg = installedApps[appId];
+                if (installedApps[appId]) { const pkg = installedApps[appId];
                 const content = pkg["entry/main.html"];
                 const blob = new Blob([content], {type: "text/html"});
                 const url = URL.createObjectURL(blob);
@@ -15143,7 +15143,7 @@
                 const nexaFrame = document.getElementById("nexaFrame");
                 if (nexaFrame) {
                     nexaFrame.src = url;
-                    openAppDirect("nexaApp");
+                    openAppDirect(appId);
                     return;
                 }
             }
@@ -15153,8 +15153,8 @@
                 const browserFrame = document.getElementById("browserFrame");
                 const nexaApp = document.getElementById("nexaApp");
                 if (nexaApp) {
-                    const nexaFrame = document.getElementById("nexaFrame"); if (nexaFrame) nexaFrame.src = customApp.url;
-                    openAppDirect("nexaApp");
+                    const nexaFrame = document.getElementById("nexaFrame"); if (nexaFrame) const targetApp = document.getElementById(appId); if (targetApp) { const iframe = targetApp.querySelector("iframe"); if (iframe) iframe.src = customApp.url; }
+                    openAppDirect(appId);
                     return;
                 }
             }
@@ -22316,7 +22316,7 @@
                     
     
         window.addEventListener('message', (e) => {
-            if (e.data.type === 'install_app') {
+            if (e.data.type === 'install_app' || e.data.type === 'install_app_instant') {
                 const { appId, packageData } = e.data;
                 const installedPackages = JSON.parse(localStorage.getItem('installed_lunpkg_apps') || '{}');
                 installedPackages[appId] = packageData;