Bump popper.js from 1.15.0 to 1.16.0

Bumps [popper.js](https://github.com/FezVrasta/popper.js) from 1.15.0 to 1.16.0.
- [Release notes](https://github.com/FezVrasta/popper.js/releases)
- [Changelog](https://github.com/FezVrasta/popper.js/blob/master/CHANGELOG.md)
- [Commits](https://github.com/FezVrasta/popper.js/compare/v1.15.0...v1.16.0)

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

package-lock.json

@@ -8849,9 +8849,9 @@
       "optional": true
     },
     "popper.js": {
-      "version": "1.15.0",
-      "resolved": "https://registry.npmjs.org/popper.js/-/popper.js-1.15.0.tgz",
-      "integrity": "sha512-w010cY1oCUmI+9KwwlWki+r5jxKfTFDVoadl7MSrIujHU5MJ5OR6HTDj6Xo8aoR/QsA56x8jKjA59qGH4ELtrA=="
+      "version": "1.16.0",
+      "resolved": "https://registry.npmjs.org/popper.js/-/popper.js-1.16.0.tgz",
+      "integrity": "sha512-+G+EkOPoE5S/zChTpmBSSDYmhXJ5PsW8eMhH8cP/CQHMFPBG/kC9Y5IIw6qNYgdJ+/COf0ddY2li28iHaZRSjw=="
     },
     "portfinder": {
       "version": "1.0.24",

package.json

@@ -13,7 +13,7 @@
     "bootswatch": "^4.3.1",
     "core-js": "^2.6.5",
     "jquery": "^3.4.1",
-    "popper.js": "^1.15.0",
+    "popper.js": "^1.16.0",
     "vue": "^2.6.10",
     "vue-router": "^3.1.3"
   },