feat: add number of searches

Signed-off-by: Phil Berryman <phil@berryman.org.uk>

plugins/search-common/api-report.md

@@ -73,6 +73,8 @@ export interface ResultSet<TDocument extends SearchDocument> {
   // (undocumented)
   nextPageCursor?: string;
   // (undocumented)
+  numberOfResults?: number;
+  // (undocumented)
   previousPageCursor?: string;
   // (undocumented)
   results: Result<TDocument>[];

plugins/search-common/src/types.ts

@@ -87,6 +87,7 @@ export interface ResultSet<TDocument extends SearchDocument> {
   results: Result<TDocument>[];
   nextPageCursor?: string;
   previousPageCursor?: string;
+  numberOfResults?: number;
 }
 
 /**