React code splitting (#2603)

* Code split using react lazy
* Split locales
* Move to lodash-es
* Import individual icons

ui/v2.5/package.json

@@ -48,7 +48,7 @@
     "i18n-iso-countries": "^6.4.0",
     "intersection-observer": "^0.12.0",
     "localforage": "1.9.0",
-    "lodash": "^4.17.20",
+    "lodash-es": "^4.17.21",
     "mousetrap": "^1.6.5",
     "mousetrap-pause": "^1.0.0",
     "normalize-url": "^4.5.1",
@@ -92,7 +92,7 @@
     "@types/apollo-upload-client": "^14.1.0",
     "@types/classnames": "^2.2.11",
     "@types/fslightbox-react": "^1.4.0",
-    "@types/lodash": "^4.14.168",
+    "@types/lodash-es": "^4.17.6",
     "@types/mousetrap": "^1.6.5",
     "@types/node": "14.14.22",
     "@types/react": "17.0.31",