Input characters dropped when typing quickly in HxSearchBox

[lmmv92]

When typing rapidly in the HxSearchBox component in a Blazor Server app, some characters are dropped.
I tried increasing the debounce delay but while this delays the results, the problem of dropped characters still occurs.

[hakenr]

It seems the keydown event might not be processed quickly enough in Blazor Server mode.
If confirmed, we should update the handleKeyDown JavaScript handler to dispatch only the relevant keys to Blazor (HxSearchBox_HandleInputKeyDown) - specifically, those that could trigger a meaningful outcome on the Blazor side. Regular keystrokes should be handled locally without calling Blazor.