* feat: add fastlane save\restore cache config; comment not needed jobs;

* install fastlane using 'bundle install'

* install fastlane using 'sudo bundle install'

* uncomment ios build commands

* run set up google services in ios folder

* add working_directory: ios to ios-build steps

* remove 'cd ios' from Fastlane build step

* add save\restore cache for npm modules

* group save_cache steps

* cache fastlane in ios-testflight job

* uncomment previously commented jobs\steps

* fix: add missing colon

* use key for caching: node-modules-{{ checksum ".circleci/config.yml" }}-{{ checksum "yarn.lock" }}

* add names for save\restore steps

* ci: add `default` step with `working_directory: ~/repo` to ios-build job

* return back caching npm: `node-v1-{{ checksum "package.json" }}-{{ arch }}`

* fix: add missing curly braces

* save\restore cache in e2e-test job; remove {{arch}} from cache names

* add names to restore_cache steps in android-build job

* add names to save_cache steps in android-build job

* add names to all save\restore steps; change checksum package.json to yarn.lock

* change `npm` to `NPM` in steps naming

* remove {{ checksum circle ci }} from android-build job and fix naming of steps