webui: Update Svelte to fix effect_update_depth_exceeded errors (#19144)

The upstream fix is first available in 5.38.2, so constrain to at least
that version.

Rebuild pre-compiled webui index.html.gz based on these changes.

See also:
https://github.com/ggml-org/llama.cpp/issues/16347
https://github.com/huntabyte/bits-ui/issues/1687
https://github.com/sveltejs/svelte/issues/16548

tools/server/webui/package.json

@@ -62,7 +62,7 @@
 		"remark-math": "^6.0.0",
 		"sass": "^1.93.3",
 		"storybook": "^10.0.7",
-		"svelte": "^5.0.0",
+		"svelte": "^5.38.2",
 		"svelte-check": "^4.0.0",
 		"tailwind-merge": "^3.3.1",
 		"tailwind-variants": "^3.2.2",