potential fixes for windows

hopefully fixes scss and email generation on windows by fixing runcmd()
and (optionally) reading npm bin location from the 'npm bin' command.
also, config path is cast to string before being passed to configparser.

mail/generate.py

@@ -1,13 +1,22 @@
 import subprocess
 import shutil
+import os
 from pathlib import Path
 
 def runcmd(cmd):
+    if os.name == "nt":
+        return subprocess.check_output(cmd, shell=True)
     proc = subprocess.Popen(cmd.split(), stdout=subprocess.PIPE)
     return proc.communicate()
 
 local_path = Path(__file__).resolve().parent
-node_bin = local_path.parent / 'node_modules' / '.bin'
+node_bin = Path(runcmd("npm bin")[0].decode('utf-8').rstrip())
+print(f"assuming npm bin directory \"{node_bin}\". Is this correct?")
+if input("[yY/nN]: ").lower() == "n":
+    node_bin = local_path.parent / 'node_modules' / '.bin'
+    print(f"this? \"{node_bin}\"")
+    if input("[yY/nN]: ").lower() == "n":
+        node_bin = input("input bin directory: ")
 
 for mjml in [f for f in local_path.iterdir() if f.is_file() and 'mjml' in f.suffix]:
     print(f'Compiling {mjml.name}')