Fixes #9713.

Fixes #9266.

For historical reasons there are many non-minimal BCP 47 tags in package
metadata in the repository (over 2500). Furthermore, earlier versions of
kmcomp did not fail the build on package compilation warnings. This
means it is better to reduce WARN_LanguageTagIsNotMinimal to
HINT_LanguageTagIsNotMinimal, so that we can otherwise respect the
'treat warnings as errors' flag on the keyboard projects.

We may be able to upgrade this to a warning again one day in the future.

Fixes #9708.

Matches the kmp.json format of keys string in the .keyboard_info schema
and compiler, in order to reduce the number of formats we are working
with. This same format may be used elsewhere in Keyman schemas in the
future for sets of keys, for example, I hope we can use it in regression
tests.

Fixes #9478.

This adds a property WelcomeFile to .kps and kmp.json, which allows us
to move away from the hardcoded welcome.htm filename in the future, and
makes transform from Markdown (#9477) a simpler operation, and just
generally starts the cleanup of the messiness of hard-coded filenames.

The package compiler will fallback to injecting welcome.htm into this
property if (a) welcome.htm is present, and (b) the property does not
already have a value. This doesn't buy us much because we still need to
support welcome.htm for existing legacy packages, but does mean that
our .kmp package metadata will be more consistent for packages compiled
with 17.0+ compilers.

chore(ios): renew certificate

chore(common): cleanup final Typescript non-ESM metadata

chore(common): keyman-version now generates only es module

chore(common): convert resources/build/version to ES Modules

chore(common): convert hextobin to ES Modules

chore(developer): convert Server to ES Modules

feat(common): precompile ajv schemas 🎺

chore: merge master into package-metadata 🎺

Fixes #9640.

This ended up being somewhat more fragile than originally anticipated.
For the `ajv` cli call to get the right versions, we needed to install
ajv as a dev dependency in the top-level package.json as well as at the
common/web/types level.

Ajv does not do all that well with ESM yet, either, so we use esbuild to
transform the compiled validators before building in typescript.

auto: increment master version to 17.0.187

Merge branch 'chore/common/9679-keyman-version-esm-only' into chore/common/9262-cleanup-final-non-esm

Merge branch 'chore/common/9679-keyman-version-esm-only' into chore/common/9262-cleanup-final-non-esm