src/vs/workbench/services/extensionManagement/browser/webExtensionsScannerService.ts/WebExtensionsScannerService/getBundleNLSResourceMapFromResources
class WebExtensionsScannerService:	private getBundleNLSResourceMapFromResources(extensionResources: string[]): Map<string, URI> {
		const bundleNLSResources = new Map<string, URI>();
		extensionResources.forEach(e => {
			// Grab all nls.bundle.{language}.json files
			const regexResult = /nls\.bundle\.([\w-]+)\.json/.exec(basename(e));
			if (regexResult?.[1]) {
				bundleNLSResources.set(regexResult[1], URI.parse(e));
			}
			if (basename(e) === 'nls.metadata.json') {
				bundleNLSResources.set('en', URI.parse(e));
			}
		});
		return bundleNLSResources;
	}