fix: load all correspondents instead of first 100 in Paperless API

Raised page_size from 100 to 9999 on GET /api/paperless/correspondents
so the FreigabePage can resolve all correspondent IDs to names.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

paperless-backend/src/paperless/paperless.controller.ts

@@ -88,7 +88,7 @@ export class PaperlessController {
 
   @Get('correspondents')
   async getCorrespondents(@Query('search') search?: string) {
-    const params: any = { page_size: 100 };
+    const params: any = { page_size: 9999 };
     if (search) {
       params.name__icontains = search;
     }