Enabled persistent caching for Webpack.

scripts/clear_webpack_cache.py

@@ -0,0 +1,14 @@
+import os
+import shutil
+
+CACHE_DIR = "./Props/node_modules/.cache/webpack"
+
+
+def clear():
+    os.chdir(os.path.dirname(os.path.realpath(__file__)))
+    os.chdir("..")
+    shutil.rmtree(CACHE_DIR, ignore_errors=True)
+
+
+if __name__ == "main":
+    clear()

scripts/npm_post_install.py

@@ -0,0 +1,3 @@
+import clear_webpack_cache
+
+clear_webpack_cache.clear()  # Refer to https://webpack.js.org/guides/build-performance/#persistent-cache and https://webpack.js.org/blog/2020-10-10-webpack-5-release/#persistent-caching