Greenkeeper/xterm 3.14.4 (#3979)

* fix(package): update xterm to version 3.14.4

Closes #3977

* chore(package): update lockfile package-lock.json

package-lock.json

@@ -17256,9 +17256,9 @@
       "dev": true
     },
     "xterm": {
-      "version": "3.14.2",
-      "resolved": "https://registry.npmjs.org/xterm/-/xterm-3.14.2.tgz",
-      "integrity": "sha512-L50XMhfAC953/3EzmL+lq8jyD6CQ3SZ83UDrxalpKzE3d7Wo5JqehSd4yOrHYZYrijOT3pX6kBsZEI9uuZ1lmQ=="
+      "version": "3.14.4",
+      "resolved": "https://registry.npmjs.org/xterm/-/xterm-3.14.4.tgz",
+      "integrity": "sha512-3YHVyWuiYWMRpVdVavnpG7hZU3ybHPUEDy7x4mUIxMaRVYy75ZniPVTzJiD1D4EqYrbwY+DmBgP1h18X6GlOOw=="
     },
     "y18n": {
       "version": "4.0.0",

package.json

@@ -106,7 +106,7 @@
     "rxjs-compat": "6.5.2",
     "sockjs-client": "1.3.0",
     "web-animations-js": "2.3.1",
-    "xterm": "3.14.2",
+    "xterm": "3.14.4",
     "zone.js": "0.9.1"
   },
   "devDependencies": {