Improve admin for hh parser models

vacancies/hh_parser/admin.py

@@ -4,6 +4,10 @@ from vacancies.hh_parser import models
 
 @admin.register(models.Vacancy)
 class VacancyAdmin(admin.ModelAdmin):
+    list_filter = ("source", "created_at")
+    search_fields = ("title",)
+    list_display = ("title", "source", "link", "created_at")
+
     def has_add_permission(self, request):
         return False