refactor(config)!: use typed lists & global subobjects (#2029)

* refactor(config): make bar windowIcons a typed list

* refactor(config): type bar tray icon subs

* style(config): remove nls

* refactor(config): type idle timeouts

* refactor(config): type battery warn levels

* refactor(config): use global subobjects for general

* style: use {} for default QString

* refactor(config): use typed player aliases

* refactor(config): use global subobject for launcher

* refactor(config): use typed launcher action list

* refactor(config)!: use global subobjects for utilities

Also move utilities.toasts.fullscreen to a global option

* refactor(config,services): use typed list for VPN providers