parse genres from tmdb

popup to add a new tag manually
added some key props to prevent warnings

api/Database.php

@@ -1,5 +1,10 @@
 <?php
 
+/**
+ * Class Database
+ *
+ * Class with all neccessary stuff for the Database connections.
+ */
 class Database
 {
     private static ?Database $instance = null;
@@ -21,6 +26,12 @@ class Database
         }
     }
 
+    /**
+     * get an instance of this database class
+     * (only possible way to retrieve an object)
+     *
+     * @return Database dbobject
+     */
     public static function getInstance()
     {
         if (!self::$instance) {
@@ -30,11 +41,20 @@ class Database
         return self::$instance;
     }
 
+    /**
+     * get a connection instance of the database
+     *
+     * @return mysqli mysqli instance
+     */
     public function getConnection()
     {
         return $this->conn;
     }
 
+    /**
+     * get name of current active database
+     * @return string name
+     */
     public function getDatabaseName(){
         return $this->dbname;
     }