* get deprecation workflow up to date
* fix routing.transition-methods deprecation
* fix this-property-fallback deprecation
* fix implicit-injections deprecation
* argument-less-helper-paren-less-invocation
* remove unmaintained ember-transition-helper which triggers deprecated-run-loop-and-computed-dot-access deprecation
* reset to only log but not throw on errors to not block other development
* reset double quote to single quote changes in templates and fix Prettier config
* fix JS linting
* ugprade ember-template-lint to fix parser
before it was done as computed properties of model
accessing encryption key in serializer is done via global application var.
this should be removed in long-term