fix: prevent duplicate bundles

- on startup we had two requests each time due to the svelte version changes in #1319, and the file was always marked as changed. Fixed by not notifying when the version info comes from the bundle worker
- migrate had two bundle requests, one from the direct `rebundle()` call, the second one because `update_file` invoked `on_update` that also invoked `rebundle()` -> remove the direct invocation
- `reset` always did two request, because `this.set` already calls `#onreset` -> deduplicate

Author: dummdidumm

packages/repl/src/lib/Input/ComponentSelector.svelte

@@ -182,7 +182,7 @@
 				<input
 					value={workspace.svelte_version}
 					placeholder="latest"
-					onchange={(ev) => (workspace.svelte_version = ev.currentTarget.value || 'latest')}
+					onchange={(ev) => workspace.set_svelte_version(ev.currentTarget.value || 'latest', true)}
 				/>
 			</label>
 

packages/repl/src/lib/Repl.svelte

@@ -127,8 +127,6 @@
 			...workspace.current!,
 			contents: migration!.code
 		});
-
-		rebundle();
 	}
 
 	let width = $state(0);
@@ -142,7 +140,7 @@
 		? new Bundler({
 				svelte_version: svelteVersion,
 				onversion: (version) => {
-					workspace.svelte_version = version;
+					workspace.set_svelte_version(version);
 					onversion?.(version);
 				},
 				onstatus: (message) => {

packages/repl/src/lib/Workspace.svelte.ts

@@ -407,14 +407,13 @@ export class Workspace {
 		selected?: string
 	) {
 		this.states.clear();
-		this.set(new_files, selected);
+		const bundle = this.set(new_files, selected);
 
 		this.mark_saved();
 
 		this.#tailwind = options.tailwind;
 		this.#aliases = options.aliases;
 
-		const bundle = this.#onreset(new_files);
 		const diagnostics = this.#reset_diagnostics();
 
 		return Promise.all([bundle, diagnostics])
@@ -458,7 +457,7 @@ export class Workspace {
 			}
 		}
 
-		this.#onreset?.(this.files);
+		return this.#onreset?.(this.files);
 	}
 
 	unlink(view: EditorView) {
@@ -507,10 +506,12 @@ export class Workspace {
 		return this.#svelte_version;
 	}
 
-	set svelte_version(value) {
+	set_svelte_version(value, notify = false) {
 		this.#svelte_version = value;
-		this.#update_file(this.#current);
-		this.#reset_diagnostics();
+		if (notify) {
+			this.#update_file(this.#current);
+			this.#reset_diagnostics();
+		}
 	}
 
 	get vim() {