feat: Move to passport for authentication (#1934)

- Added `accountProvisioner`
- Move authentication to use passport strategies
- Make authentication more pluggable
- Change language of services -> providers

closes #1120

server/models/Team.js

@@ -10,6 +10,7 @@ import {
 } from "../../shared/utils/domains";
 import { ValidationError } from "../errors";
 import { DataTypes, sequelize, Op } from "../sequelize";
+import { generateAvatarUrl } from "../utils/avatars";
 import { publicS3Endpoint, uploadToS3FromUrl } from "../utils/s3";
 
 import Collection from "./Collection";
@@ -66,7 +67,6 @@ const Team = sequelize.define(
       allowNull: false,
       defaultValue: true,
     },
-    slackData: DataTypes.JSONB,
   },
   {
     paranoid: true,
@@ -85,7 +85,11 @@ const Team = sequelize.define(
       },
       logoUrl() {
         return (
-          this.avatarUrl || (this.slackData ? this.slackData.image_88 : null)
+          this.avatarUrl ||
+          generateAvatarUrl({
+            id: this.id,
+            name: this.name,
+          })
         );
       },
     },
@@ -164,17 +168,10 @@ Team.prototype.provisionFirstCollection = async function (userId) {
     "Our Editor",
     "What is Outline",
   ];
+
   for (const title of onboardingDocs) {
     const text = await readFile(
-      path.join(
-        __dirname,
-        "..",
-        "..",
-        "..",
-        "server",
-        "onboarding",
-        `${title}.md`
-      ),
+      path.join(process.cwd(), "server", "onboarding", `${title}.md`),
       "utf8"
     );
     const document = await Document.create({