Update to Strophe 2.0.0

package-lock.json

@@ -10015,7 +10015,7 @@
         "pluggable.js": "3.0.1",
         "sizzle": "^2.3.5",
         "sprintf-js": "^1.1.2",
-        "strophe.js": "strophe/strophejs#a75895308216e81b28f58d276395a01b15c9e645",
+        "strophe.js": "2.0.0",
         "urijs": "^1.19.10"
       },
       "devDependencies": {}

src/headless/package.json

@@ -42,7 +42,7 @@
     "pluggable.js": "3.0.1",
     "sizzle": "^2.3.5",
     "sprintf-js": "^1.1.2",
-    "strophe.js": "strophe/strophejs#a75895308216e81b28f58d276395a01b15c9e645",
+    "strophe.js": "2.0.0",
     "urijs": "^1.19.10"
   },
   "devDependencies": {}