Post to Slack (#603)

* Migrations

* WIP: Integration model, slack perms / hooks

* So so rough it pains me. Building this new model is revealing just how much needs to be refactored

* Working connect and post

* Cleanup UI, upating documents

* Show when slack command is connected

* stash

* 💚

* Add documents.update trigger

* Authorization, tidying

* Fixed integration policy

* pick integration presenter keys

server/api/documents.test.js

@@ -385,12 +385,7 @@ describe('#documents.create', async () => {
       },
     });
     const body = await res.json();
-    const newDocument = await Document.findOne({
-      where: {
-        id: body.data.id,
-      },
-    });
-
+    const newDocument = await Document.findById(body.data.id);
     expect(res.status).toEqual(200);
     expect(newDocument.parentDocumentId).toBe(null);
     expect(newDocument.collection.id).toBe(collection.id);