chore: Various importer improvements (#6519)

* Handle new Notion export format
Clear data on file operation delete

* fix: Don't restart development server on html upload

* fix: Do not send collection created notifications on bulk import

* fix: Avoid parellelizing all uploads at once
Move import into one transaction per-collection

server/models/Document.ts

@@ -1006,22 +1006,25 @@ class Document extends ParanoidModel<
   toNavigationNode = async (
     options?: FindOptions<Document>
   ): Promise<NavigationNode> => {
-    const childDocuments = await (this.constructor as typeof Document)
-      .unscoped()
-      .scope("withoutState")
-      .findAll({
-        where: {
-          teamId: this.teamId,
-          parentDocumentId: this.id,
-          archivedAt: {
-            [Op.is]: null,
-          },
-          publishedAt: {
-            [Op.ne]: null,
-          },
-        },
-        transaction: options?.transaction,
-      });
+    // Checking if the record is new is a performance optimization – new docs cannot have children
+    const childDocuments = this.isNewRecord
+      ? []
+      : await (this.constructor as typeof Document)
+          .unscoped()
+          .scope("withoutState")
+          .findAll({
+            where: {
+              teamId: this.teamId,
+              parentDocumentId: this.id,
+              archivedAt: {
+                [Op.is]: null,
+              },
+              publishedAt: {
+                [Op.ne]: null,
+              },
+            },
+            transaction: options?.transaction,
+          });
 
     const children = await Promise.all(
       childDocuments.map((child) => child.toNavigationNode(options))