feat(cli): add support for JetBrains editors during the editor setup question

[KTrain5169]

Closes #1987

This PR adds JetBrains editors as an option during the editor setup step.
As of writing this, the PR simply writes the Oxc plugin ID to .idea/externalDependencies.xml. I plan to go through editor settings (for WebStorm at least) to evaluate which keys are relevant to Oxc and should be set, hence the draft status.

Up for debate

• Should the option be named "JetBrains (IntelliJ, WebStorm, etc)" or is just "WebStorm"/"IntelliJ" enough in the menu?
• The CLI also writes intellij.vitejs to the externalDependencies file. Should this remain in the PR? I'm not confident it supports Vite+ properly. Removed pending better integration from JetBrains' side
• Currently the system is a bit hacky given that all other editors read JSON instead of XML. If this becomes a consistent problem (as in, editors start having their own different file formats), then it may be better to rewrite the system a bit so that the file type is automatically detected from the file extension, and all that needs to be supplied to the entry in EDITORS is a key noting the name of the file, and an object describing the shape of the file, with the writing stage formatting it to the expected file type inferred from the file extension before putting it in the file.
• It should not 100% work with merging with existing externalDependencies.xml files yet (already having some changes lined up to get this properly working) turns out merging the XML configs is extremely complicated!
• Should the CLI also try and set up the JS runtime & package manager options? package manager is set to pnpm by default and it should point to the Vite+ Node shim)

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[fengmk2]

@codex review

[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Accept common JetBrains IDE names

The new option is presented as covering IntelliJ/WebStorm, but CLI resolution still only accepts the literal id jetbrains or the full display label. Users who pass --editor webstorm or --editor intellij get no editor config and no error, so add aliases for the named JetBrains IDEs or reject unknown editor values explicitly.

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[KTrain5169]

Not sure about how to deal with this, I assume we just leave this right?