chore:(deps): bump classnames from 2.2.6 to 2.3.0 in /explorer (#16298)

Bumps [classnames](https://github.com/JedWatson/classnames) from 2.2.6 to 2.3.0.
- [Release notes](https://github.com/JedWatson/classnames/releases)
- [Changelog](https://github.com/JedWatson/classnames/blob/master/HISTORY.md)
- [Commits](https://github.com/JedWatson/classnames/compare/v2.2.6...v2.3.0)

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

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

explorer/package-lock.json

@@ -5354,9 +5354,9 @@
       }
     },
     "classnames": {
-      "version": "2.2.6",
-      "resolved": "https://registry.npmjs.org/classnames/-/classnames-2.2.6.tgz",
-      "integrity": "sha512-JR/iSQOSt+LQIWwrwEzJ9uk0xfN3mTVYMwt1Ir5mUcSN6pU+V4zQFFaJsclJbPuAUQH+yfWef6tm7l1quW3C8Q=="
+      "version": "2.3.0",
+      "resolved": "https://registry.npmjs.org/classnames/-/classnames-2.3.0.tgz",
+      "integrity": "sha512-UUf/S3eeczXBjHPpSnrZ1ZyxH3KmLW8nVYFUWIZA/dixYMIQr7l94yYKxaAkmPk7HO9dlT6gFqAPZC02tTdfQw=="
     },
     "clean-css": {
       "version": "4.2.3",

explorer/package.json

@@ -29,7 +29,7 @@
     "bs58": "^4.0.1",
     "chai": "^4.3.4",
     "chart.js": "^2.9.4",
-    "classnames": "2.2.6",
+    "classnames": "2.3.0",
     "coingecko-api": "^1.0.10",
     "cross-fetch": "^3.1.2",
     "humanize-duration-ts": "^2.1.1",