Turn on tailwind JIT mode, and upgrade to 2.2.4 (#3297)

Co-authored-by: Alex Andreev <alex.andreev.email@gmail.com>

package.json

@@ -365,7 +365,7 @@
     "sharp": "^0.26.1",
     "spectron": "11.0.0",
     "style-loader": "^2.0.0",
-    "tailwindcss": "^2.1.2",
+    "tailwindcss": "^2.2.4",
     "ts-jest": "26.5.6",
     "ts-loader": "^7.0.5",
     "ts-node": "^8.10.2",