Bump lodash from 4.17.15 to 4.17.21 in /twistter-frontend

Bumps [lodash](https://github.com/lodash/lodash) from 4.17.15 to 4.17.21.
- [Release notes](https://github.com/lodash/lodash/releases)
- [Commits](https://github.com/lodash/lodash/compare/4.17.15...4.17.21)

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

twistter-frontend/package-lock.json

@@ -5367,9 +5367,9 @@
       }
     },
     "lodash": {
-      "version": "4.17.15",
+      "version": "4.17.21",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.15.tgz",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
-      "integrity": "sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A=="
+      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg=="
     },
     "lodash._arraycopy": {
       "version": "3.0.0",
@@ -9793,9 +9793,9 @@
       "integrity": "sha1-DqEOgDXo61uOREnwbaHHMGY7qoE="
     },
     "underscore": {
-      "version": "1.12.1",
+      "version": "1.13.1",
-      "resolved": "https://registry.npmjs.org/underscore/-/underscore-1.12.1.tgz",
+      "resolved": "https://registry.npmjs.org/underscore/-/underscore-1.13.1.tgz",
-      "integrity": "sha512-hEQt0+ZLDVUMhebKxL4x1BTtDY7bavVofhZ9KZ4aI26X9SRaE+Y3m83XUL1UP2jn8ynjndwCCpEHdUG+9pP1Tw=="
+      "integrity": "sha512-hzSoAVtJF+3ZtiFX0VgfFPHEDRm7Y/QPjGyNo4TVdnDTdft3tr8hEkD25a1jC+TjTuE7tkHGKkhwCgs9dgBB2g=="
     },
     "union-value": {
       "version": "1.0.1",
@@ -10395,9 +10395,9 @@
       "integrity": "sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ=="
     },
     "y18n": {
-      "version": "3.2.2",
+      "version": "3.2.1",
-      "resolved": "https://registry.npmjs.org/y18n/-/y18n-3.2.2.tgz",
+      "resolved": "https://registry.npmjs.org/y18n/-/y18n-3.2.1.tgz",
-      "integrity": "sha512-uGZHXkHnhF0XeeAPgnKfPv1bgKAYyVvmNL1xlKsPYZPaIHxGti2hHqvOCQv71XMsLxu1QjergkqogUnms5D3YQ=="
+      "integrity": "sha1-bRX7qITAhnnA136I53WegR4H+kE="
     },
     "yallist": {
       "version": "2.1.2",