Configured, and added tailwindcss (#223)

Co-authored-by: widlam <mikolaj.widla@gmail.com>
Reviewed-on: #223
Reviewed-by: Adam Bem <bema@noreply.example.com>
Co-authored-by: Mikolaj Widla <widlam@noreply.example.com>
Co-committed-by: Mikolaj Widla <widlam@noreply.example.com>

Frontend/postcss.config.js

@@ -0,0 +1,7 @@
+/* eslint-disable no-undef */
+module.exports = {
+  plugins: {
+    tailwindcss: {},
+    autoprefixer: {},
+  },
+}