fix: interactive scan crash "Could not find color or style"

[hojmark]

Fixes crash when running scan -i:

✕ Could not find color or style ''.
   at Spectre.Console.AnsiMarkupTagParser.Parse(String) + 0x7a
   at Spectre.Console.AnsiMarkup.Parse(String, Nullable`1) + 0x2ac
   at Spectre.Console.Markup..ctor(String, Nullable`1) + 0x70
   at Drift.Cli.Commands.Scan.Interactive.Ui.ScanLayout.BuildFooter() + 0x4c9
   at Drift.Cli.Commands.Scan.Interactive.Ui.ScanLayout..ctor(NetworkId, IAnsiConsole) + 0x36e
   at Drift.Cli.Commands.Scan.Interactive.InteractiveUi..ctor(IOutputManager, Network, INetworkScanner, NetworkScanOptions, IKeyMap, Boolean) + 0x1be
   at Drift.Cli.Commands.Scan.ScanCommandHandler.<Invoke>d__5.MoveNext() + 0x83e
--- End of stack trace from previous location ---
   at System.CommandLine.Invocation.InvocationPipeline.<InvokeAsync>d__0.MoveNext() + 0xca
--- End of stack trace from previous location ---
   at Drift.Cli.DriftCli.<InvokeAsync>d__0.MoveNext() + 0x26c