Bump svelte from 3.35.0 to 3.49.0 (#2070)

Bumps [svelte](https://github.com/sveltejs/svelte) from 3.35.0 to 3.49.0.
- [Release notes](https://github.com/sveltejs/svelte/releases)
- [Changelog](https://github.com/sveltejs/svelte/blob/master/CHANGELOG.md)
- [Commits](sveltejs/svelte@v3.35.0...v3.49.0)

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

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Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

package-lock.json

@@ -77,6 +77,6 @@
     "rollup-plugin-svelte": "^5.0.3",
     "rollup-plugin-terser": "^5.1.2",
     "skulpt": "^0.11.1",
-    "svelte": "^3.0.0"
+    "svelte": "^3.49.0"
   }
 }