chore(deps): bump xterm from 3.14.5 to 4.5.0

[dependabot-preview]

Bumps xterm from 3.14.5 to 4.5.0.

Release notes

Sourced from xterm's releases.

4.5.0

🚀 Features

📦 API

• New experimental link provider API (#2530, #2710) via @jmbockhorst. This flips around how links in the terminal work by asking an addon what links are available at a particular cell when its hovered, instead of pre-parsing the entire viewport using the current link matcher API. The plan is for this to eventually replace the registerLinkMatcher API. You can test this new API by setting the _useLinkProvider parameter on the web links addon.
• The alternate buffer can now be accessed via the experimental buffer API (#2713) via @JavaCS3. This breaks the previous API so if you're an early adopter be sure to update accordingly.

🐞 Bug fixes

• Remove duplicate CSS rule being added (#2715) via @kumaran-14
• Make cursor display on the last cell if it's off the edge of the screen (#2731) via @jerch
• Fix transparent theme colors on old Edge (#2739) via @felixse
• Fix addDisposableDomListener leaking events (#2767) via @JavaCS3
• Use role=list attribute when screenReaderMode is enabled (#2814) via @Tyriar
• Ensure multiple cursor blink animations aren't occurring at same time (#2817) via @Tyriar

📝 Documentation and internal improvements

• Typo, improving wording (#2698, #2766) via @Tyriar
• Consolidate integration test helper functions (#2711) via @jmbockhorst
• Migrate from puppeteer to playwright (#2712) @jmbockhorst
• Run tests in Firefox and WebKit (#2722, #2725) via @Tyriar
• Update to TypeScript 3.8 (#2730) via @Tyriar
• Document VT features in code and extract for the website (#2754) via @jerch
• Upgrade several dev dependencies (#2758, #2760, #2770, #2772, #2779, #2780, #2783, #2795, #2801, #2803, #2805, #2810, #2815, #2819, #2820) via @Tyriar, @dependabot, @dependabot-preview
• Migrate from tslint to eslint (#2786, #2799, #2827) via @Tyriar
• Upgrade mac agent in pipelines (#2800) via @Tyriar
• Use debug instead of warn log level for open on non-attached element (#2825) via @Tyriar

🛑 Breaking changes

• The buffer API has changed significantly:

  // before 4.5.0
  const activeBuffer = term.buffer
  // after 4.5.0
  const activeBuffer = term.buffer.active

🎉 New real-world use cases

• x-terminal (#2723) via @UziTech
• CoCalc (#2761) via @slel

---

🤝 Compatible addon versions

... (truncated)

Commits

• 4809a2e Merge pull request #2828 from Tyriar/release45
• f61d632 v4.5.0
• c66b25b Merge pull request #2827 from Tyriar/eslint_types
• a66edbd Merge pull request #2713 from JavaCS3/master
• ef0d834 Convert eslintrc to json and fix errors
• 89daaca Add missing api docs
• f4f15ee Add missing line in api
• 4c36ef9 Don't pass buffers to BufferApiView
• 886af69 Use a separate emitter for BufferNamespaceApi.onBufferChange
• c63949f Merge branch 'master' into master
• Additional commits viewable in compare view

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Superseded by #148.