Bump xterm from 2.9.2 to 4.5.0 in /webcli/js

Bumps [xterm](https://github.com/xtermjs/xterm.js) from 2.9.2 to 4.5.0.
- [Release notes](https://github.com/xtermjs/xterm.js/releases)
- [Commits](https://github.com/xtermjs/xterm.js/compare/2.9.2...4.5.0

)
Signed-off-by: dependabot[bot] <support@github.com>

webcli/js/package.json

@@ -9,6 +9,6 @@
   },
   "dependencies": {
     "libapps": "github:yudai/libapps#release-hterm-1.70",
-    "xterm": "^2.7.0"
+    "xterm": "^4.5.0"
   }
 }