Bump browserslist from 4.14.0 to 4.16.6 in /frontend (#33)

Bumps [browserslist](https://github.com/browserslist/browserslist) from 4.14.0 to 4.16.6.
- [Release notes](https://github.com/browserslist/browserslist/releases)
- [Changelog](https://github.com/browserslist/browserslist/blob/main/CHANGELOG.md)
- [Commits](https://github.com/browserslist/browserslist/compare/4.14.0...4.16.6)

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

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

frontend/package-lock.json

@@ -2919,14 +2919,37 @@
             }
         },
         "browserslist": {
-            "version": "4.14.0",
+            "version": "4.16.6",
-            "resolved": "https://registry.npmjs.org/browserslist/-/browserslist-4.14.0.tgz",
+            "resolved": "https://registry.npmjs.org/browserslist/-/browserslist-4.16.6.tgz",
-            "integrity": "sha512-pUsXKAF2lVwhmtpeA3LJrZ76jXuusrNyhduuQs7CDFf9foT4Y38aQOserd2lMe5DSSrjf3fx34oHwryuvxAUgQ==",
+            "integrity": "sha512-Wspk/PqO+4W9qp5iUTJsa1B/QrYn1keNCcEP5OvP7WBwT4KaDly0uONYmC6Xa3Z5IqnUgS0KcgLYu1l74x0ZXQ==",
             "requires": {
-                "caniuse-lite": "^1.0.30001111",
+                "caniuse-lite": "^1.0.30001219",
-                "electron-to-chromium": "^1.3.523",
+                "colorette": "^1.2.2",
-                "escalade": "^3.0.2",
+                "electron-to-chromium": "^1.3.723",
-                "node-releases": "^1.1.60"
+                "escalade": "^3.1.1",
+                "node-releases": "^1.1.71"
+            },
+            "dependencies": {
+                "caniuse-lite": {
+                    "version": "1.0.30001228",
+                    "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001228.tgz",
+                    "integrity": "sha512-QQmLOGJ3DEgokHbMSA8cj2a+geXqmnpyOFT0lhQV6P3/YOJvGDEwoedcwxEQ30gJIwIIunHIicunJ2rzK5gB2A=="
+                },
+                "electron-to-chromium": {
+                    "version": "1.3.736",
+                    "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.3.736.tgz",
+                    "integrity": "sha512-DY8dA7gR51MSo66DqitEQoUMQ0Z+A2DSXFi7tK304bdTVqczCAfUuyQw6Wdg8hIoo5zIxkU1L24RQtUce1Ioig=="
+                },
+                "escalade": {
+                    "version": "3.1.1",
+                    "resolved": "https://registry.npmjs.org/escalade/-/escalade-3.1.1.tgz",
+                    "integrity": "sha512-k0er2gUkLf8O0zKJiAhmkTnJlTvINGv7ygDNPbeIsX/TJjGJZHuh9B2UxbsaEkmlEo9MfhrSzmhIlhRlI2GXnw=="
+                },
+                "node-releases": {
+                    "version": "1.1.72",
+                    "resolved": "https://registry.npmjs.org/node-releases/-/node-releases-1.1.72.tgz",
+                    "integrity": "sha512-LLUo+PpH3dU6XizX3iVoubUNheF/owjXCZZ5yACDxNnPtgFuludV1ZL3ayK1kVep42Rmm0+R9/Y60NQbZ2bifw=="
+                }
             }
         },
         "bs-logger": {
@@ -4386,11 +4409,6 @@
             "resolved": "https://registry.npmjs.org/ee-first/-/ee-first-1.1.1.tgz",
             "integrity": "sha1-WQxhFWsK4vTwJVcyoViyZrxWsh0="
         },
-        "electron-to-chromium": {
-            "version": "1.3.533",
-            "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.3.533.tgz",
-            "integrity": "sha512-YqAL+NXOzjBnpY+dcOKDlZybJDCOzgsq4koW3fvyty/ldTmsb4QazZpOWmVvZ2m0t5jbBf7L0lIGU3BUipwG+A=="
-        },
         "elliptic": {
             "version": "6.5.4",
             "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.5.4.tgz",
@@ -4739,11 +4757,6 @@
                 "is-symbol": "^1.0.2"
             }
         },
-        "escalade": {
-            "version": "3.0.2",
-            "resolved": "https://registry.npmjs.org/escalade/-/escalade-3.0.2.tgz",
-            "integrity": "sha512-gPYAU37hYCUhW5euPeR+Y74F7BL+IBsV93j5cvGriSaD1aG6MGsqsV1yamRdrWrb2j3aiZvb0X+UBOWpx3JWtQ=="
-        },
         "escape-html": {
             "version": "1.0.3",
             "resolved": "https://registry.npmjs.org/escape-html/-/escape-html-1.0.3.tgz",
@@ -8195,11 +8208,6 @@
                 }
             }
         },
-        "node-releases": {
-            "version": "1.1.60",
-            "resolved": "https://registry.npmjs.org/node-releases/-/node-releases-1.1.60.tgz",
-            "integrity": "sha512-gsO4vjEdQaTusZAEebUWp2a5d7dF5DYoIpDG7WySnk7BuZDW+GPpHXoXXuYawRBr/9t5q54tirPz79kFIWg4dA=="
-        },
         "normalize-html-whitespace": {
             "version": "1.0.0",
             "resolved": "https://registry.npmjs.org/normalize-html-whitespace/-/normalize-html-whitespace-1.0.0.tgz",