Fix human date on iOS devices (#510)

package-lock.json

@@ -17,7 +17,6 @@
         "autoprefixer": "^10.4.14",
         "codemirror": "^6.0.1",
         "cssnano": "^5.1.15",
-        "dayjs": "^1.11.9",
         "github-markdown-css": "^5.5.0",
         "highlight.js": "^11.11.1",
         "jdenticon": "^3.3.0",
@@ -1872,13 +1871,6 @@
         "node": ">=8.0.0"
       }
     },
-    "node_modules/dayjs": {
-      "version": "1.11.11",
-      "resolved": "https://registry.npmjs.org/dayjs/-/dayjs-1.11.11.tgz",
-      "integrity": "sha512-okzr3f11N6WuqYtZSvm+F776mB41wRZMhKP+hc34YdW+KmtYYK9iqvHSwo2k9FEH3fhGXvOPV6yz2IcSrfRUDg==",
-      "dev": true,
-      "license": "MIT"
-    },
     "node_modules/debug": {
       "version": "3.2.7",
       "resolved": "https://registry.npmjs.org/debug/-/debug-3.2.7.tgz",