build(deps): bump xterm from 4.7.0 to 4.8.1 in /html (#408)

Bumps [xterm](https://github.com/xtermjs/xterm.js) from 4.7.0 to 4.8.1.
- [Release notes](https://github.com/xtermjs/xterm.js/releases)
- [Commits](https://github.com/xtermjs/xterm.js/compare/4.7.0...4.8.1)

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

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

html/package.json

@@ -66,7 +66,7 @@
     "file-saver": "^2.0.2",
     "preact": "^10.4.6",
     "whatwg-fetch": "^3.2.0",
-    "xterm": "^4.7.0",
+    "xterm": "^4.8.1",
     "xterm-addon-fit": "^0.4.0",
     "xterm-addon-web-links": "^0.4.0",
     "xterm-addon-webgl": "^0.8.0",

html/yarn.lock

@@ -8583,10 +8583,10 @@ xterm-addon-webgl@^0.8.0:
   resolved "https://registry.yarnpkg.com/xterm-addon-webgl/-/xterm-addon-webgl-0.8.0.tgz#4bc6bb4dbfea5b0d2d7978d6c5cef922d584fb4f"
   integrity sha512-dlpYPsv0C9S6v6+T/h/d/otSbdUTizMJdxvSoS34tUpMOHev6iW7Zqt5KRFqYxl4vCqpDk9Wmhb3fKL3kwX5fQ==
 
-xterm@^4.7.0:
-  version "4.7.0"
-  resolved "https://registry.yarnpkg.com/xterm/-/xterm-4.7.0.tgz#254485811146b03fbea10c911f7f68a99e1d3bfd"
-  integrity sha512-UeH6U/1iknCBP94/AcKAFBeQz6ZicMugJHGXruTmsY8RcZt+mkx+vl8jLLOqNYweXdBbywCg2kK88WDKjcmSmg==
+xterm@^4.8.1:
+  version "4.8.1"
+  resolved "https://registry.yarnpkg.com/xterm/-/xterm-4.8.1.tgz#155a1729a43e1a89b406524e22c5634339e39ca1"
+  integrity sha512-ax91ny4tI5eklqIfH79OUSGE2PUX2rGbwONmB6DfqpyhSZO8/cf++sqiaMWEVCMjACyMfnISW7C3gGMoNvNolQ==
 
 y18n@^3.2.1:
   version "3.2.1"