fix: dns resolution taking long and add caching options (#8)

cmd/root.go

@@ -45,9 +45,8 @@ func init() {
 	cfg := config.Get()
 	rootCmd.Flags().StringVar(&topTheme, "theme", cfg.Defaults.Theme, "Theme for TUI (see 'snitch themes')")
 	rootCmd.Flags().DurationVarP(&topInterval, "interval", "i", 0, "Refresh interval (default 1s)")
-	rootCmd.Flags().BoolVar(&topResolveAddrs, "resolve-addrs", !cfg.Defaults.Numeric, "Resolve IP addresses to hostnames")
-	rootCmd.Flags().BoolVar(&topResolvePorts, "resolve-ports", false, "Resolve port numbers to service names")
 
-	// shared filter flags for root command
+	// shared flags for root command
 	addFilterFlags(rootCmd)
+	addResolutionFlags(rootCmd)
 }