Unify the drop zones into one component

app/MindWork AI Studio/Dialogs/ChatTemplateDialog.razor

@@ -4,7 +4,9 @@
 <MudDialog>
     <DialogContent>
         @* A drop anywhere in this dialog belongs to the dialog, not to the page behind it: *@
-        <DropZoneScope>
+        @* The name for the drop state is given although nobody uses it: the messages of this dialog
+           are listed in a table, whose rows would otherwise ask for the same name. *@
+        <PathDropZone IsArea="@true" Context="isDropTarget">
         <MudJustifiedText Class="mb-3" Typo="Typo.body1">
             @T("Create your custom chat template to tailor the LLM's behavior for specific tasks or domains. Define a custom system prompt and provide an example conversation to design an AI experience perfectly suited to your requirements.")
         </MudJustifiedText>
@@ -203,7 +205,7 @@
         }
 
         <Issues IssuesData="@this.dataIssues"/>
-        </DropZoneScope>
+        </PathDropZone>
     </DialogContent>
     <DialogActions>
         @if (this.IsReadOnly)