Frontend dependencies moved to npm

This MR move all frontend dependencies into npm dependencies using django-npm module.

smash/smash/local_settings.py.template

@@ -83,3 +83,6 @@ TWO_FACTOR_SMS_GATEWAY = "web.nexmo_gateway.Nexmo"
 # whether 2 steps authentication is mandatory to access the system
 
 FORCE_2FA = True
+
+# path to 'smash' folder
+NPM_ROOT_PATH = '/path/to/smasch/'
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