Bump svelte from 3.16.0 to 3.49.0 in /app

Bumps [svelte](https://github.com/sveltejs/svelte) from 3.16.0 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/v3.16.0...v3.49.0)

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

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

app/package-lock.json

@@ -2094,9 +2094,9 @@
       }
     },
     "svelte": {
-      "version": "3.16.0",
-      "resolved": "https://registry.npmjs.org/svelte/-/svelte-3.16.0.tgz",
-      "integrity": "sha512-k7nCQTd9/rGOi25iv/sBeJe2W89hK2lcaUsmUQqikH0Tye7Gh/tvvF9LuNTSF+dQY/isNX+g8K9fJf+5jMLfxw==",
+      "version": "3.49.0",
+      "resolved": "https://registry.npmjs.org/svelte/-/svelte-3.49.0.tgz",
+      "integrity": "sha512-+lmjic1pApJWDfPCpUUTc1m8azDqYCG1JN9YEngrx/hUyIcFJo6VZhj0A1Ai0wqoHcEIuQy+e9tk+4uDgdtsFA==",
       "dev": true
     },
     "terser": {

app/package.json

@@ -13,7 +13,7 @@
     "rollup-plugin-node-resolve": "^5.2.0",
     "rollup-plugin-svelte": "^5.0.3",
     "rollup-plugin-terser": "^5.1.2",
-    "svelte": "^3.0.0"
+    "svelte": "^3.49.0"
   },
   "dependencies": {
     "sirv-cli": "^0.4.4"