fix(nextcloud): use ceph subdir for data

kube/deploy/apps/nextcloud/app/hr.yaml

@@ -33,7 +33,7 @@ spec:
               TZ: "${CONFIG_TZ}"
               NC_DOMAIN: &host "${APP_DNS_NEXTCLOUD}"
               NC_VERSION: "27.1.3"
-              NEXTCLOUD_DATA_DIR: "/ceph"
+              NEXTCLOUD_DATA_DIR: "/ceph/data"
               NEXTCLOUD_TRUSTED_DOMAINS: *host
               POSTGRES_HOST:
                 valueFrom:
@@ -331,7 +331,7 @@ spec:
           config.php: |-
             <?php
             $CONFIG = array (
-              'datadirectory' => '/ceph',
+              'datadirectory' => '/ceph/data',
               'overwrite.cli.url' => 'https://${APP_DNS_NEXTCLOUD}',
               'overwriteprotocol' => 'https',
               'default_phone_region' => 'SG',