Fix: Preserve hasMorePages to show "Load more" button

When user configures remotes and we loop through all of them, we should
preserve itemData.hasMorePages so that the "Load more" button appears
if any repository has more pages. Previously, we were returning
hasMorePages: false which prevented the "Load more" button from showing.

Co-authored-by: alexr00 <38270282+alexr00@users.noreply.github.com>

Author: Copilot

src/@types/vscode.proposed.chatParticipantAdditions.d.ts

@@ -105,6 +105,7 @@ declare module 'vscode' {
 		isComplete?: boolean;
 		toolSpecificData?: ChatTerminalToolInvocationData;
 		fromSubAgent?: boolean;
+		presentation?: 'hidden' | 'hiddenAfterComplete' | undefined;
 
 		constructor(toolName: string, toolCallId: string, isError?: boolean);
 	}

src/github/folderRepositoryManager.ts

@@ -1179,7 +1179,7 @@ export class FolderRepositoryManager extends Disposable {
 
 		return {
 			items: itemData.items,
-			hasMorePages: false,
+			hasMorePages: itemData.hasMorePages,
 			hasUnsearchedRepositories: false,
 			totalCount: itemData.totalCount
 		};