Add scheduling-remote service to docker-compose and enhance camera error handling

- Introduced a new service for scheduling-remote in docker-compose.yml, allowing for better management of scheduling functionalities.
- Enhanced error handling in CameraMonitor and CameraStreamer classes to improve robustness during camera initialization and streaming processes.
- Updated various components in the management dashboard to support dark mode and improve user experience with consistent styling.
- Implemented feature flags for enabling/disabling modules, including the new scheduling module.

management-dashboard-web-app/src/App.tsx

@@ -115,7 +115,7 @@ function App() {
 
   if (loading) {
     return (
-      <div className="min-h-screen flex items-center justify-center bg-gray-50">
+      <div className="min-h-screen flex items-center justify-center bg-gray-50 dark:bg-gray-900">
         <div className="text-center">
           <div className="animate-spin rounded-full h-12 w-12 border-b-2 border-indigo-600 mx-auto"></div>
           <p className="mt-4 text-gray-600">Loading...</p>
@@ -127,7 +127,7 @@ function App() {
   // Handle signout route
   if (currentRoute === '/signout') {
     return (
-      <div className="min-h-screen flex items-center justify-center bg-gray-50">
+      <div className="min-h-screen flex items-center justify-center bg-gray-50 dark:bg-gray-900">
         <div className="text-center">
           <div className="animate-spin rounded-full h-12 w-12 border-b-2 border-indigo-600 mx-auto"></div>
           <p className="mt-4 text-gray-600">Signing out...</p>