Change treatment of Teacher color team names

Previously I was treating them as "conflict or connection", trying to give them an en dash. But I think they're just compound adjectives, so let's revert to a hyphen-minus. Also fixes missing capitalization for one of them.

lib/convert-worker.js

@@ -394,7 +394,6 @@ function enDashJointNames(xml) {
   xml = xml.replace(/Undersider(s?)-(Breakthrough|Ambassador)/g, "Undersider$1–$2");
   xml = xml.replace(/Norwalk-Fairfield/g, "Norwalk–Fairfield");
   xml = xml.replace(/East-West/g, "east–west");
-  xml = xml.replace(/(Green|Yellow)-Black/g, "$1–Black");
   xml = xml.replace(/Creutzfeldt-Jakob/g, "Creutzfeldt–Jakob");
   xml = xml.replace(/Astaroth-Nidhug/g, "Astaroth–Nidhug");
   xml = xml.replace(/Capulet-Montague/g, "Capulet–Montague");

lib/substitutions.json

@@ -7077,6 +7077,10 @@
     {
       "before": "one remaining Thrall",
       "after": "one remaining thrall"
+    },
+    {
+      "before": "Team copper-white",
+      "after": "Team Copper-White"
     }
   ],
   "https://www.parahumans.net/2019/07/20/dying-15-5/": [