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>

README.md

@@ -1,14 +1,2 @@
 # CS307-Team24
 CS307 Team 24 Twistter website
-
-### Images
-<p>
-  <img alt="00.png" src="./screenshots/00.png" width="1000">
-  <img alt="01.png" src="./screenshots/01.png" width="1000">
-  <img alt="02.png" src="./screenshots/02.png" width="1000">
-  <img alt="03.png" src="./screenshots/03.png" width="1000">
-  <img alt="04.png" src="./screenshots/04.png" width="1000">
-  <img alt="05.png" src="./screenshots/05.png" width="1000">
-  <img alt="06.png" src="./screenshots/06.png" width="1000">
-  <img alt="07.png" src="./screenshots/07.png" width="1000">
-</p>

twistter-frontend/package-lock.json

@@ -2418,9 +2418,9 @@
       "integrity": "sha1-6vQ5/U1ISK105cx9vvIAZyueNFs="
     },
     "dayjs": {
-      "version": "1.10.7",
-      "resolved": "https://registry.npmjs.org/dayjs/-/dayjs-1.10.7.tgz",
-      "integrity": "sha512-P6twpd70BcPK34K26uJ1KT3wlhpuOAPoMwJzpsIWUxHZ7wpmbdZL/hQqBDfz7hGurYSa5PhzdhDHtt319hL3ig=="
+      "version": "1.10.4",
+      "resolved": "https://registry.npmjs.org/dayjs/-/dayjs-1.10.4.tgz",
+      "integrity": "sha512-RI/Hh4kqRc1UKLOAf/T5zdMMX5DQIlDxwUe3wSyMMnEbGunnpENCdbUgM+dW7kXidZqCttBrmw7BhN4TMddkCw=="
     },
     "debug": {
       "version": "2.6.9",
@@ -5367,9 +5367,9 @@
       }
     },
     "lodash": {
-      "version": "4.17.15",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.15.tgz",
-      "integrity": "sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A=="
+      "version": "4.17.21",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
+      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg=="
     },
     "lodash._arraycopy": {
       "version": "3.0.0",
@@ -9793,9 +9793,9 @@
       "integrity": "sha1-DqEOgDXo61uOREnwbaHHMGY7qoE="
     },
     "underscore": {
-      "version": "1.13.2",
-      "resolved": "https://registry.npmjs.org/underscore/-/underscore-1.13.2.tgz",
-      "integrity": "sha512-ekY1NhRzq0B08g4bGuX4wd2jZx5GnKz6mKSqFL4nqBlfyMGiG10gDFhDTMEfYmDL6Jy0FUIZp7wiRB+0BP7J2g=="
+      "version": "1.13.1",
+      "resolved": "https://registry.npmjs.org/underscore/-/underscore-1.13.1.tgz",
+      "integrity": "sha512-hzSoAVtJF+3ZtiFX0VgfFPHEDRm7Y/QPjGyNo4TVdnDTdft3tr8hEkD25a1jC+TjTuE7tkHGKkhwCgs9dgBB2g=="
     },
     "union-value": {
       "version": "1.0.1",
@@ -9913,9 +9913,9 @@
       }
     },
     "url-parse": {
-      "version": "1.5.10",
-      "resolved": "https://registry.npmjs.org/url-parse/-/url-parse-1.5.10.tgz",
-      "integrity": "sha512-WypcfiRhfeUP9vvF0j6rw0J3hrWrw6iZv3+22h6iRMJ/8z1Tj6XfLP4DsUix5MhMPnXpiHDoKyoZ/bdCkwBCiQ==",
+      "version": "1.4.7",
+      "resolved": "https://registry.npmjs.org/url-parse/-/url-parse-1.4.7.tgz",
+      "integrity": "sha512-d3uaVyzDB9tQoSXFvuSUNFibTd9zxd2bkVrDRvF5TmvWWQwqE4lgYJ5m+x1DbecWkw+LK4RNl2CU1hHuOKPVlg==",
       "requires": {
         "querystringify": "^2.1.1",
         "requires-port": "^1.0.0"