Changed all icons of AI Studio to Lucide (#1187)

app/MindWork AI Studio/Dialogs/Settings/SettingsDialogChat.razor

@@ -5,7 +5,7 @@
 <MudDialog>
     <TitleContent>
         <MudText Typo="Typo.h6" Class="d-flex align-center">
-            <MudIcon Icon="@Icons.Material.Filled.Chat" Class="mr-2" />
+            <MudIcon Icon="@AppIcons.CHAT" Class="mr-2" />
             @T("Chat Options")
         </MudText>
     </TitleContent>