chore: update @html-eslint/eslint-plugin to 0.50.0

[lumirlumir]

Prerequisites checklist

• I have read the contributing guidelines.

What is the purpose of this pull request?

This PR was motivated by #253.

In this PR, I've primarily updated @html-eslint/eslint-plugin to 0.50.0.

The CI failed because of newly updated types in @html-eslint/eslint-plugin, so I've opened a separate PR:

https://github.com/eslint/code-explorer/actions/runs/19939229918/job/57172393803?pr=253

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Based on the core Plugin type, including undefined in the @html-eslint/eslint-plugin type appears to be valid.

https://github.com/eslint/rewrite/blob/main/packages/core/src/types.ts#L1114-L1125

export interface Plugin extends ObjectMetaProperties {
	meta?: ObjectMetaProperties["meta"] & {
		namespace?: string | undefined;
	};
	configs?:
		| Record<string, LegacyConfigObject | ConfigObject | ConfigObject[]>
		| undefined;
	environments?: Record<string, EnvironmentConfig> | undefined;
	languages?: Record<string, Language> | undefined;
	processors?: Record<string, Processor> | undefined;
	rules?: Record<string, RuleDefinition> | undefined;
}

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Also, I’ve updated React to the latest version and used the node: prefix in vite.config.ts to clarify the code’s intent.

What changes did you make? (Give an overview)

In this PR, I've primarily updated @html-eslint/eslint-plugin to 0.50.0.

Related Issues

Ref: #253

Is there anything you'd like reviewers to focus on?

N/A

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[lumirlumir]

I've used the non-null assertion since, unlike in the type implementation, it's obvious that html.languages is not undefined in the real implementation.

[Copilot]

Pull request overview

This PR updates @html-eslint/eslint-plugin from version 0.48.0 to 0.50.0, with necessary type adjustments to accommodate breaking changes in the plugin's type definitions. Additionally, React and React DOM are updated to the latest patch version 19.2.1.

• Updated @html-eslint/eslint-plugin to 0.50.0 with corresponding type safety fix
• Updated React and React DOM to 19.2.1
• Improved code clarity with node: prefix for Node.js built-in module imports

Reviewed changes

Copilot reviewed 3 out of 4 changed files in this pull request and generated no comments.

File	Description
vite.config.ts	Added node: prefix to path import for better Node.js built-in module clarity
src/hooks/use-ast.ts	Added non-null assertion operator for html.languages property to comply with updated type definitions from @html-eslint/eslint-plugin v0.50.0
package.json	Updated @html-eslint/eslint-plugin to 0.50.0 and React/React DOM to 19.2.1
package-lock.json	Synchronized dependency tree with package.json changes, including transitive dependency updates

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[amareshsm]

LGTM. Thanks.