Merge pull request #398 from shrinishLT/DOT-3556-B

add customCSS support

Author: parthlambdatest

package.json

@@ -43,6 +43,7 @@
     "json-stringify-safe": "^5.0.1",
     "listr2": "^7.0.1",
     "node-cache": "^5.1.2",
+    "postcss": "^8.5.6",
     "sharp": "^0.33.4",
     "tsup": "^7.2.0",
     "uuid": "^11.0.3",