refactor: Remove log generator functionality and update UI components

- Eliminated the log generator feature from the admin logs template and related handlers.
- Updated icons in the log viewer for consistency and improved visual clarity.
- Adjusted mobile dropdown functionality in the layout template for better user experience.
- Cleaned up debug logging statements in the WebSocket handler for recent logs.

main.go

@@ -66,9 +66,6 @@ func main() {
 	// Set Gin to release mode
 	gin.SetMode(gin.ReleaseMode)
 
-	// Initialize random for test log generator (Go 1.20+ compatible)
-	// No need to seed in newer Go versions as it's automatically initialized
-
 	// Initialize configuration
 	cfg, err := config.Load()
 	if err != nil {