fix(web): enhanced timer for prediction algorithm

auto: increment master version to 16.0.60

fix(windows): Delete both code units when deleting surrogate pairs in TSF-aware apps

feat(core): add `km_kbp_event` API endpoint

chore: use keyman.com instead of keyman-staging.com

auto: increment master version to 16.0.59

When the windows platform recieves the action for a backspace
it will check to see if the character being delete is a surrogate
pair. If it is and the app is TSF aware app it will need to backspace
twice to remove both parts of the surrogate pair. For legacy apps this
is not required.

feat(common/models): extra Unicode-based wordbreaker unit tests

fix(common/models): reconnects unit tests for worker-internal submodules 🎡

Fixes #7227.

We want to use keyman.com for now even for alpha builds, as
keyman-staging.com is going to be used for transition to Docker-based
hosting, and it will be problematic to try and share that process with
alpha builds.

auto: increment master version to 16.0.58

Adds infrastructure required to support caps lock control on keyboard
activation per #5822.

Keyboardprocessor implementation is currently a stub, and engines will
need corresponding updates to support the new API.

fix(android/engine): Fix Backspace key to delete without errant subkeys

auto: increment master version to 16.0.57

chore(linux): Fix ibus-keyman.postinst script

auto: increment master version to 16.0.56

chore(android): Reduce Toast notification noise

When installing ibus-keyman it could happen that we got an (ignored)
error "user name does not exist". This change tries to work around
this problem.

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

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

auto: increment master version to 16.0.55

chore(core): emcc off path for linux

fix(linux): Allow downgrades for installing build deps