Fixing PR442:

- Fixed:
    - UI design elemets
    - UI and button colors
    - JSON export
    - recent activity is default again
- Removed:
    - Online/Offline UI labels
    - left-click menu on hosts
- Added:
    - small pulsing dot inside the hosts to indicate online status like in the left bar

src/ui/desktop/DesktopApp.tsx

@@ -292,8 +292,13 @@ function AppContent() {
           )}
 
           {showNetworkGraph && (
-            <div className="h-screen w-full visible pointer-events-auto static overflow-hidden flex flex-col pt-16">
-              <NetworkGraphView />
+            <div className="h-screen w-full visible pointer-events-auto static overflow-hidden">
+              <NetworkGraphView
+                isTopbarOpen={isTopbarOpen}
+                rightSidebarOpen={rightSidebarOpen}
+                rightSidebarWidth={rightSidebarWidth}
+                isStandalone={true}
+              />
             </div>
           )}