add icon in Title Dialog

[bikotoru]

Add Icon Support to Dialog Titles

What

Added icon display functionality to Radzen dialog titles.

Changes

• Added Icon property to DialogOptions - icon name to display
• Added IconColor property to DialogOptions - icon color
• Added IconStyle property to DialogOptions - custom CSS for icon
• Updated dialog component to render icon when provided

Examples

await DialogService.OpenAsync<StateTransitionConfirmModal>(
    $"Change to {transition.DisplayName ?? transition.To}",
    parameters,
    new DialogOptions 
    { 
        Width = "600px", 
        CloseDialogOnOverlayClick = false,
        ShowTitle = true,
        ShowClose = true,
        Icon = "add",
        IconColor = Colors.Danger,
        IconStyle = "border: solid 1px"
    });

 await DialogService.OpenAsync<StateTransitionConfirmModal>(
     $"Cambiar a {transition.DisplayName ?? transition.To}",
     parameters,
     new DialogOptions
     {
         Width = "600px",
         CloseDialogOnOverlayClick = false,
         ShowTitle = true,
         ShowClose = true,
         Icon = "add",
         IconColor = Colors.Success,

     });

Notes

• All new properties are optional