Make IntrinsicElements extends SvelteHTMLElements

so it can be extend with declare module
converting to module so it can extend without needing another type alias

packages/svelte/svelte-html.d.ts

@@ -1,11 +1,22 @@
 /// <reference lib="dom" />
 /* eslint-disable @typescript-eslint/no-empty-interface */
 
+import * as svelteElements from './elements';
+
 /**
+ * @internal do not use
+ */
+type HTMLProps<Property extends string, Override> = Omit<
+	import('./elements').SvelteHTMLElements[Property],
+	keyof Override
+> &
+	Override;
+
+declare global {
+	/**
 	 * This namespace does not exist in the runtime, it is only used for typings
- *
 	 */
-declare namespace svelteHTML {
+	namespace svelteHTML {
 		// Every namespace eligible for use needs to implement the following two functions
 		/**
 		 * @internal do not use
@@ -20,7 +31,7 @@ declare namespace svelteHTML {
 		function createElement<Elements extends IntrinsicElements, Key extends keyof Elements>(
 			// "undefined | null" because of <svelte:element>
 			element: Key | undefined | null,
-		attrs: string extends Key ? import('./elements').HTMLAttributes<any> : Elements[Key]
+			attrs: string extends Key ? svelteElements.HTMLAttributes<any> : Elements[Key]
 		): Key extends keyof ElementTagNameMap
 			? ElementTagNameMap[Key]
 			: Key extends keyof SVGElementTagNameMap
@@ -30,7 +41,7 @@ declare namespace svelteHTML {
 			// "undefined | null" because of <svelte:element>
 			element: Key | undefined | null,
 			attrsEnhancers: T,
-		attrs: (string extends Key ? import('./elements').HTMLAttributes<any> : Elements[Key]) & T
+			attrs: (string extends Key ? svelteElements.HTMLAttributes<any> : Elements[Key]) & T
 		): Key extends keyof ElementTagNameMap
 			? ElementTagNameMap[Key]
 			: Key extends keyof SVGElementTagNameMap
@@ -43,20 +54,11 @@ declare namespace svelteHTML {
 		// eslint-disable-next-line @typescript-eslint/no-unused-vars
 		interface SVGAttributes<T extends EventTarget = any> {}
 
-	/**
-	 * @internal do not use
-	 */
-	type HTMLProps<Property extends string, Override> = Omit<
-		import('./elements').SvelteHTMLElements[Property],
-		keyof Override
-	> &
-		Override;
-
 		/**
 		 * Avoid using this interface directly. Instead use the `SvelteHTMLElements` interface exported by `svelte/elements`
 		 * This should only be used if you need to extend the interface with custom elements
 		 */
-	interface IntrinsicElements {
+		interface IntrinsicElements extends svelteElements.SvelteHTMLElements {
 			a: HTMLProps<'a', HTMLAttributes>;
 			abbr: HTMLProps<'abbr', HTMLAttributes>;
 			address: HTMLProps<'address', HTMLAttributes>;
@@ -244,4 +246,5 @@ declare namespace svelteHTML {
 
 			[name: string]: { [name: string]: any };
 		}
+	}
 }