Bump d3 from 5.9.2 to 5.9.7 in /app (#169)

Bumps [d3](https://github.com/d3/d3) from 5.9.2 to 5.9.7.
- [Release notes](https://github.com/d3/d3/releases)
- [Changelog](https://github.com/d3/d3/blob/master/CHANGES.md)
- [Commits](https://github.com/d3/d3/compare/v5.9.2...v5.9.7)

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

app/package.json

@@ -20,7 +20,7 @@
     "brace": "^0.11.1",
     "compare-versions": "^3.5.0",
     "copy-text-to-clipboard": "^2.1.0",
-    "d3": "^5.9.2",
+    "d3": "^5.9.7",
     "d3-shape": "^1.3.5",
     "diff": "^4.0.1",
     "dot-prop": "^5.0.0",