add contract models and register this models admin panel

core/apps/shared/admins/folder.py

@@ -0,0 +1,8 @@
+from django.contrib import admin
+
+from core.apps.shared.models.folder import Folder
+
+
+@admin.register(Folder)
+class FolderAdmin(admin.ModelAdmin):
+    list_display = ['id', 'name']