oauth_server.md: Install DB before enabling the bundles (#2397)

It avoids having `php bin/console` checking the bundles' configs.

(cherry picked from commit f31b890)

Author: adriendupuis

docs/users/oauth_server.md

@@ -18,26 +18,12 @@ You can install it with the following command:
 composer require ibexa/oauth2-server --with-all-dependencies
 ```
 
-Then, in `config/bundles.php`, at the end of an array with a list of bundles, add the following two lines :
-
-```php
-<?php
-
-return [
-    // A lot of bundles…
-    Ibexa\Bundle\OAuth2Server\IbexaOAuth2ServerBundle::class => ['all' => true],
-    League\Bundle\OAuth2ServerBundle\LeagueOAuth2ServerBundle::class => ['all' => true],
-];
-```
-
 Add the tables needed by the bundle:
 
 === "MySQL"
 
     ```bash
-    mysql -u <username> -p <password> <database_name> -e 'SET FOREIGN_KEY_CHECKS=0;'
     php bin/console ibexa:doctrine:schema:dump-sql vendor/ibexa/oauth2-server/src/bundle/Resources/config/schema.yaml | mysql -u <username> -p <password> <database_name>
-    mysql -u <username> -p <password> <database_name> -e 'SET FOREIGN_KEY_CHECKS=1;'
     ```
 
 === "PostgreSQL"
@@ -46,6 +32,18 @@ Add the tables needed by the bundle:
     php bin/console ibexa:doctrine:schema:dump-sql --force-platform=postgres vendor/ibexa/oauth2-server/src/bundle/Resources/config/schema.yaml | psql <database_name>
     ```
 
+Then, in `config/bundles.php`, at the end of an array with a list of bundles, add the following two lines :
+
+```php
+<?php
+
+return [
+    // A lot of bundles…
+    Ibexa\Bundle\OAuth2Server\IbexaOAuth2ServerBundle::class => ['all' => true],
+    League\Bundle\OAuth2ServerBundle\LeagueOAuth2ServerBundle::class => ['all' => true],
+];
+```
+
 ## Authorization Server configuration
 
 ### Keys