fix: technical debts left by the Sites, Authors and SEO slices, plus backend support for the new Sites and Authors pagination

internal/domain/article/articleRepositoryInterface.go

@@ -76,6 +76,8 @@ type Counts struct {
 	All    int `json:"all"`
 	Online int `json:"online"`
 	Draft  int `json:"draft"`
+
+	Suggestions int `json:"suggestions"`
 }
 
 type PageResult struct {