fix: restore missing .lproj directories (#15721)

the empty lproj directories help macOS to understand what locales the app supports

build/mac/make_locale_dirs.py

@@ -0,0 +1,20 @@
+# usage: make_locale_dirs.py locale_dir [...]
+#
+# This script is intended to create empty locale directories (.lproj) in a
+# Cocoa .app bundle. The presence of these empty directories is sufficient to
+# convince Cocoa that the application supports the named localization, even if
+# an InfoPlist.strings file is not provided. Chrome uses these empty locale
+# directoires for its helper executable bundles, which do not otherwise
+# require any direct Cocoa locale support.
+
+import os
+import sys
+
+
+def main(args):
+  for dirname in args:
+    os.makedirs(dirname)
+
+
+if __name__ == '__main__':
+  main(sys.argv[1:])