fix(web): Add null check for changing the keyboard during typing

auto: increment master version to 17.0.246

feat(developer): add `-m` parameter to kmc to control message severity

fix(android): Fix OSK rotation issues

chore(core): Ignore C++ symbols

auto: increment master version to 17.0.245

We have a C API, but (internal) C++ template instantiations are visible
and so get flagged by `dpkg-gensymbols`. This change ignores the one
use of C++ by marking it optional. This is listed as a usage scenario
in the dpkg-gensymbols man page.

Note this requires a change how we call dpkg-gensymbols: if the `-O`
parameter is specified, the file is not treated as being a template file
(see man deb-src-symbols) and so the tags are not interpreted.
Additionally the file gets overwritten with the non-tag version. So this
change removes the `-O` parameter, and changes the archiving of the
generated file.

docs(linux): Update sample settings

fix(web): use KMW OSK font for "**" special-text in key hints

Co-authored-by: Eberhard Beilharz <ermshiperete@users.noreply.github.com>

feat(developer): warn on gesture support for downlevel

refactor(core): Move `km_core_state_context_*` tests to separate file

auto: increment master version to 17.0.244

It was fairly surprising to have the unit tests for
`km_core_state_context_*` methods in `action_api.cpp`, so this change
moves them to a separate file.

The previous settings are now deprecated, so this change replaces them.

refactor(linux): Use `km_core_state_context_set_if_needed`

chore(linux): fix GHA packaging

getConfiguration().orientation seems to be deprecated so changing to getRotation() for detecting PORTRAIT vs LANDSCAPE orientation

Reference:
https://developer.android.com/reference/android/view/Display#getRotation()

fix(ios): use safe area to position Keyman menu correctly

refactor(core): use `km_core_state_context_clear` where possible

fix(developer): test-page model loading

Relates to #10365.

Use `km_core_state_context_clear()` instead of `km_core_context_clear()`
as part of eliminating use of `km_core_state_context()`.

fix(web): prediction time-limiter issues, performance 📜

chore(common): Update crowdin strings for French, German, Spanish (Latin America)

chore(core): split out some files 🙀

auto: increment master version to 17.0.243

- reapply 0d9f543a code review comments

#10320