Refactor dialog components and styles for improved UI consistency

Updated the dialog components to use a unified class name, replacing 'crt-panel' with 'crt-dialog' for better clarity and consistency across the application. Enhanced the dialog overlay with a denser background and blur effect to improve readability against underlying content. Additionally, modified the UploadSnackbar and ShowsPanel to reflect these changes, ensuring a cohesive user experience.

frontend/src/shared/ui/dialog.tsx

@@ -12,7 +12,9 @@ const DialogOverlay = forwardRef<
 >(({ className, ...props }, ref) => (
   <DialogPrimitive.Overlay
     ref={ref}
-    className={cn('fixed inset-0 z-50 bg-black/60', className)}
+    // Затемнение плотнее и с размытием: под диалогом обычно сетка эфира, и её строки
+    // просвечивали сквозь окно, мешая читать поля.
+    className={cn('fixed inset-0 z-50 bg-black/80 backdrop-blur-sm', className)}
     {...props}
   />
 ))
@@ -27,7 +29,7 @@ export const DialogContent = forwardRef<
     <DialogPrimitive.Content
       ref={ref}
       className={cn(
-        'crt-panel fixed left-1/2 top-1/2 z-50 w-full max-w-md -translate-x-1/2 -translate-y-1/2 rounded-md p-6',
+        'crt-dialog fixed left-1/2 top-1/2 z-50 w-full max-w-md -translate-x-1/2 -translate-y-1/2 rounded-md p-6',
         className,
       )}
       {...props}

frontend/src/shared/ui/toaster.tsx

@@ -47,7 +47,7 @@ function ToastItem({
   return (
     <output
       className={cn(
-        'crt-panel pointer-events-auto flex items-start gap-3 rounded-md px-4 py-3 text-sm shadow-lg',
+        'crt-dialog pointer-events-auto flex items-start gap-3 rounded-md px-4 py-3 text-sm',
         variant === 'success' && 'border-primary/60',
         variant === 'error' && 'border-red-700/60 text-red-400',
       )}