Bump rollup from 2.9.1 to 2.10.0 in /app

Bumps [rollup](https://github.com/rollup/rollup) from 2.9.1 to 2.10.0.
- [Release notes](https://github.com/rollup/rollup/releases)
- [Changelog](https://github.com/rollup/rollup/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rollup/rollup/compare/v2.9.1...v2.10.0)

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

app/package-lock.json

@@ -239,9 +239,9 @@
       }
     },
     "rollup": {
-      "version": "2.9.1",
-      "resolved": "https://registry.npmjs.org/rollup/-/rollup-2.9.1.tgz",
-      "integrity": "sha512-kEZn76R0j+WD4AActu5Np4RShNlewTtJhdUaWNtHwHnAA8AOapyXgH6O7NL2RkcQLHnl49oz1xW1VrDcu5yP+Q==",
+      "version": "2.10.0",
+      "resolved": "https://registry.npmjs.org/rollup/-/rollup-2.10.0.tgz",
+      "integrity": "sha512-7BmpEfUN9P6esJzWIn3DmR//90mW6YwYB1t3y48LpF8ITpYtL8s1kEirMKqUu44dVH/6a/rs0EuwYVL3FuRDoA==",
       "dev": true,
       "requires": {
         "fsevents": "~2.1.2"

app/package.json

@@ -14,6 +14,6 @@
   "license": "ISC",
   "devDependencies": {
     "jshint": "^2.11.0",
-    "rollup": "^2.9.1"
+    "rollup": "^2.10.0"
   }
 }