fix: update xterm and plugins (#252)

xterm@4.10.0
xterm-addon-fit@0.5.0
xterm-addon-ligatures@0.4.0

Author: UziTech

package-lock.json

@@ -61,9 +61,9 @@
     "uuid": "^8.3.2",
     "whatwg-url": "^8.4.0",
     "which": "^2.0.2",
-    "xterm": "4.9.0",
-    "xterm-addon-fit": "0.4.0",
-    "xterm-addon-ligatures": "0.4.0-beta.9",
+    "xterm": "4.10.0",
+    "xterm-addon-fit": "0.5.0",
+    "xterm-addon-ligatures": "0.4.0",
     "xterm-addon-web-links": "0.4.0",
     "xterm-addon-webgl": "0.9.0"
   },