feat(web): headless segmentation unit tests 🐵

feat(web): touchpath segment objects 🐵

feat(web): gesture touchpath segmentation core 🐵

auto: increment master version to 16.0.78

chore(web): unit test polishing pass

fix(web): possible error on change of context to a contextEditable

auto: increment master version to 16.0.77

chore(linux): Cleanup unnecessary surrogate check

auto: increment master version to 16.0.76

chore(common): builder script maintenance

auto: increment master version to 16.0.75

Previously `process_unicode_char_action` checked for
`action_item->character` being a surrogate. This should never happen
because `action_item->character` is a 32-bit character. This change
removes the unnecessary check and the `keyman->firstsurrogate` field.

Fixes #6385.

fix(android/engine): Dismiss subkeys on multi-touch

chore(android/engine): Display Toast notifications on Sentry errors

auto: increment master version to 16.0.74

fix(developer): handle invalid kps xml when loading project view

auto: increment master version to 16.0.73

refactor(common): Split builder utilities to separate script

Co-authored-by: Marc Durdin <marc@durdin.net>

fix(web): Only unhighlight suggestion if there's a pending one

auto: increment master version to 16.0.72

fix(common/web): mock deadkey handling after rules manipulating context 📴