fix(android/engine): register lexical model in switchToNextKeyboard

fix(web): Copy the keyboard stubs for registration

auto: increment master version to 15.0.84

refactor(common/core/desktop): Rename Load method 🚧

Rename KMX_Environment::Load to KMX_Environment::Set.

Fixes #5435.

fix(android/engine): Display dictionary help link

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

refactor(web): longpresses, groundwork for additional gestures 🍕

refactor(common/core/desktop): Fix file and class names 🚧

chore(windows): remove backup build step

auto: increment master version to 15.0.83

- rename source files for `kmx_processor` -> `kmx_processor.*`
- rename class `KMX_Processor` -> `KMX_ProcessEvent` with source
  files `kmx_processevent.*`

Closes #5436.

fix(common/models/types): fixes test script config

We no longer need to backup debug files as they are saved to the symbol
store during a release build. This reduces the amount of storage
required for a release build and should speed up the build also.

Also fixes the broken build where backup had not been updated for the
new consistent build paths.

auto: increment master version to 15.0.82

chore(windows): make build paths consistent

chore(web): updates regression test-deps to same versions as web