fix: Fix signatures and types in template related classes

Signed-off-by: Côme Chilliet <come.chilliet@nextcloud.com>

lib/private/Template/Base.php

@@ -75,20 +75,18 @@ class Base {
 	 *
 	 * If the key existed before, it will be overwritten
 	 */
-	public function assign(string $key, float|array|bool|int|string|\Throwable|null $value): void {
+	public function assign(string $key, mixed $value): void {
 		$this->vars[$key] = $value;
 	}
 
 	/**
 	 * Appends a variable
-	 * @param string $key key
-	 * @param mixed $value value
 	 *
 	 * This function assigns a variable in an array context. If the key already
 	 * exists, the value will be appended. It can be accessed via
 	 * $_[$key][$position] in the template.
 	 */
-	public function append($key, $value) {
+	public function append(string $key, mixed $value): void {
 		if (array_key_exists($key, $this->vars)) {
 			$this->vars[$key][] = $value;
 		} else {

lib/private/Template/TemplateManager.php

@@ -16,9 +16,10 @@ use OCP\EventDispatcher\IEventDispatcher;
 use OCP\IRequest;
 use OCP\Server;
 use OCP\Template\ITemplate;
+use OCP\Template\ITemplateManager;
 use Psr\Log\LoggerInterface;
 
-class TemplateManager {
+class TemplateManager implements ITemplateManager {
 	public function __construct(
 		private IAppManager $appManager,
 		private IEventDispatcher $eventDispatcher,

lib/public/Template/ITemplate.php

@@ -34,5 +34,14 @@ interface ITemplate {
 	 * If the key existed before, it will be overwritten
 	 * @since 32.0.0
 	 */
-	public function assign(string $key, float|array|bool|int|string|\Throwable|null $value): void;
+	public function assign(string $key, mixed $value): void;
+
+	/**
+	 * Appends a variable
+	 *
+	 * This function assigns a variable in an array context. If the key already
+	 * exists, the value will be appended. It can be accessed via
+	 * $_[$key][$position] in the template.
+	 */
+	public function append(string $key, mixed $value): void;
 }

lib/public/Util.php

@@ -107,7 +107,7 @@ class Util {
 	 * @param string $file
 	 * @since 4.0.0
 	 */
-	public static function addStyle($application, $file = null) {
+	public static function addStyle($application, $file = null): void {
 		\OC_Util::addStyle($application, $file);
 	}