feat: re-organize Settings dialog (#17)

* feat: re-organize settings dialog

* feat: add missed configuration descriptions

* style: increase pasteLongTextToFileLen default

* style: introduce configuration type

* refactor: extract configuration details

* refactor: SettingDialog

* style: small fixes

* style: save timings if exist

* style: code review app context

* feat: add ability to disable advanced options

Author: olegshulyakov