[Svelte] Add support for Svelte 5

UPGRADE-3.0.md

@@ -38,6 +38,13 @@ class MyLiveComponent {
         * Options `authReferrerPolicy`, `mapIds`, `channel`, `solutionChannel` have been added
         * Options `ìd`, `nonce`, `retries`, `url` have been removed
 
+## Svelte
+
+* The support for Svelte 3 has been dropped, only Svelte 5 is supported now.
+  Make sure to upgrade your Svelte components accordingly.
+
+  TODO: to complete...
+
 ## Swup
 
 * The package has been removed, see the [previous README](https://raw.githubusercontent.com/symfony/ux/refs/heads/2.x/src/Turbo/README.md)

src/Svelte/CHANGELOG.md

@@ -5,6 +5,7 @@
 -   Minimum required Symfony version is now 6.4
 -   Minimum required PHP version is now 8.2
 -   Remove old compatibility layer with deprecated `StimulusTwigExtension` from WebpackEncoreBundle ^1.0, use StimulusBundle instead
+-   Drop support of Svelte 3, only Svelte 5 is supported now
 
 ## 2.30
 

src/Svelte/assets/dist/render_controller.d.ts

@@ -16,8 +16,8 @@ declare class export_default extends Controller<Element & {
         intro: BooleanConstructor;
     };
     connect(): void;
-    disconnect(): void;
-    _destroyIfExists(): void;
+    disconnect(): Promise<void>;
+    _destroyIfExists(): Promise<void>;
     private dispatchEvent;
 }