docs: update demo video link and remove unused gif

release: v0.4.1

docs: add 0.4.1 release note

docs: add 0.4.1 changelog entry

ci: disable libghostty simd for linux releases

ci: avoid executing cross-built artifacts

build: add libghostty simd toggle for ci

ci: fix manual artifact workflow filters

ci: add manual artifact build workflow

fix: pin vendored libghostty version for release builds

release: v0.4.0

fix: respect synchronized terminal output batches

docs: draft 0.4.0 changelog

chore: ignore pi issues

merge: bring ghostty branch onto latest master