Suggestion: Update SilenceErrors note

If `SilenceErrors:` is false, Cobra will emit unstructured log lines. Since Zarf wants structured logs whenever possible it makes sense for this to be set to true. The value being true signifies that we will be emitting our own logs using `slog` when we are returning an error.

src/cmd/root.go

@@ -124,8 +124,7 @@ func NewZarfCommand() *cobra.Command {
 		Long:         lang.RootCmdLong,
 		Args:         cobra.MaximumNArgs(1),
 		SilenceUsage: true,
-		// TODO(mkcp): Do we actually want to silence errors here?
-		SilenceErrors:     true,
+		SilenceErrors:     true, // If false, Cobra will emit unstructured log lines. We don't want that. We'd rather emit our own slog lines when returning an error.
 		PersistentPreRunE: preRun,
 		Run:               run,
 	}