The checked-in bundle could not be reproduced from a clean checkout. It
was built from a working tree with hand-modified xterm sources in
node_modules that were never captured as a patch, so it carried terminal
behaviour that exists nowhere in the repository.
It was also one revision stale against our own source: 04fe30a3e flipped
the ResizeObserver call in terminal-emulator-runtime.ts to
shouldClaim: false and never rebuilt the bundle afterwards.
Rebuilding from the published @xterm/xterm picks up that resize fix and
puts the artifact back in sync with the sources anyone can build from.