PM-42402 v1.0.4 - added missing files

Plugin submission complained about these files missing.

db/uninstall.php

@@ -0,0 +1,31 @@
+<?php
+// This file is part of Moodle - https://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <https://www.gnu.org/licenses/>.
+
+/**
+ * Code that is executed before the tables and data are dropped during the plugin uninstallation.
+ *
+ * @package     mod_kialo
+ * @copyright  2023 onwards, Kialo GmbH <[email protected]>
+ * @license    https://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+/**
+ * Custom uninstallation procedure.
+ */
+function xmldb_kialo_uninstall() {
+    // There's nothing special to do here.
+    return true;
+}

db/upgrade.php

@@ -0,0 +1,32 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Upgrade steps for the Kialo activity module.
+ *
+ * @package    mod_kialo
+ * @copyright  2023 onwards, Kialo GmbH <[email protected]>
+ * @license    https://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+/**
+ * Custom upgrade steps.
+ * @param int $oldversion
+ * @return void
+ */
+function xmldb_kialo_upgrade($oldversion = 0) {
+    // This is the first public version, so there is nothing to do yet.
+}

version.php

@@ -26,8 +26,8 @@
 
 /** @var stdClass $plugin */
 $plugin->component = 'mod_kialo';
-$plugin->release = '1.0.3';
-$plugin->version = 2023083103;
+$plugin->release = '1.0.4';
+$plugin->version = 2023083104;
 
 // Officially we require PHP 7.4. The first Moodle version that requires this as a minimum is Moodle 4.1.
 // But technically this plugin also runs on older Moodle versions, as long as they run on PHP 7.4,