feat: Overseerr to Jellyseerr migration (#2019)

* feat: add Overseerr migration

* refactor: rename to Seerr

* refactor: more rename to Seerr

* feat: update the value of the MediaStatus.DELETED enum

* fix: add more details in migration logs

* fix: replace .update by .save for TypeORM hooks

* fix: add fake migration to skip the duplicated UpdateWebPush migration

* fix: rewrite the AddUserAvatarCacheFields migration for Overseerr merge

* fix: replace jellyseerr migrations with a dedicated one for overseerr

* fix: update overseerr migration

* fix: update overseerr migration

* fix: remove irrelevant changes

* fix: typos

* docs: update jsdoc comment

* docs: update seerr description

* docs: fix the contributing.md link

* fix: remove unwanterd change on postgres dev datasource

* docs: add latest tag to docker image

* fix: migrate old deleted status for 4k media

* fix: update Seerr version check

server/index.ts

@@ -16,6 +16,7 @@ import SlackAgent from '@server/lib/notifications/agents/slack';
 import TelegramAgent from '@server/lib/notifications/agents/telegram';
 import WebhookAgent from '@server/lib/notifications/agents/webhook';
 import WebPushAgent from '@server/lib/notifications/agents/webpush';
+import checkOverseerrMerge from '@server/lib/overseerrMerge';
 import { getSettings } from '@server/lib/settings';
 import logger from '@server/logger';
 import clearCookies from '@server/middleware/clearcookies';
@@ -59,7 +60,12 @@ if (!appDataPermissions()) {
 app
   .prepare()
   .then(async () => {
-    const dbConnection = await dataSource.initialize();
+    // Run Overseerr to Seerr migration
+    await checkOverseerrMerge();
+
+    const dbConnection = dataSource.isInitialized
+      ? dataSource
+      : await dataSource.initialize();
 
     // Run migrations in production
     if (process.env.NODE_ENV === 'production') {