fix(eventstore): sub queries (#1805)

* sub queries

* fix: tests

* add builder to tests

* new search query

* rename searchquerybuilder to builder

* remove comment from code

* test with multiple queries

* add filters test

* fix(contibute): listing

* add validate module

* fix: search queries

* remove unused event type in query

* ignore query if error in marshal

* go mod tidy

* update privacy policy query

* update queries

Co-authored-by: Livio Amstutz <livio.a@gmail.com>

internal/eventstore/repository/search_query.go

@@ -7,7 +7,7 @@ type SearchQuery struct {
 	Columns Columns
 	Limit   uint64
 	Desc    bool
-	Filters []*Filter
+	Filters [][]*Filter
 }
 
 //Columns defines which fields of the event are needed for the query