fix:navigate error when search keyword change

src/editor/core/draw/interactive/Search.ts

@@ -34,10 +34,8 @@ export class Search {
 
   public setSearchKeyword(payload: string | null) {
     this.searchKeyword = payload
-    if (!payload) {
     this.searchNavigateIndex = null
   }
-  }
 
   public searchNavigatePre(): number | null {
     if (!this.searchMatchList.length || !this.searchKeyword) return null