[BridgeJS][ImportTS] Support `export { thing } from "pkg"` form in `b… #1928

Job	Run time
build-examples	42m 33s
format	34s
Build and Test (ubuntu-22.04, https://download.swift.org/swift-6.1-release/ubuntu2204/swift-6.1-R...	13m 59s
Build for native target (macos-15, Xcode_16.4)	2m 21s
Build and Test (ubuntu-22.04, https://download.swift.org/development/ubuntu2204/swift-DEVELOPMENT...	17m 38s
Build and Test (ubuntu-24.04, https://download.swift.org/swift-6.3-branch/ubuntu2404/swift-6.3-DE...	12m 53s
Build and Test (ubuntu-24.04, https://download.swift.org/development/ubuntu2404/swift-DEVELOPMENT...	11m 52s
check-bridgejs-generated	2m 50s
deploy-examples	9s
	1h 44m 49s

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