Bump svelte from 3.42.4 to 3.49.0 in /rust_warp_svelte/ui

Bumps [svelte](https://github.com/sveltejs/svelte) from 3.42.4 to 3.49.0.
- [Release notes](https://github.com/sveltejs/svelte/releases)
- [Changelog](https://github.com/sveltejs/svelte/blob/master/CHANGELOG.md)
- [Commits](https://github.com/sveltejs/svelte/compare/v3.42.4...v3.49.0)

---
updated-dependencies:
- dependency-name: svelte
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>

rust_warp_svelte/ui/package.json

@@ -19,7 +19,7 @@
     "rollup-plugin-livereload": "^2.0.0",
     "rollup-plugin-svelte": "^7.0.0",
     "rollup-plugin-terser": "^7.0.0",
-    "svelte": "^3.0.0",
+    "svelte": "^3.49.0",
     "svelte-check": "^2.0.0",
     "svelte-preprocess": "^4.0.0",
     "tslib": "^2.0.0",