Sergey D

Code improvements to make Scribe ready for future features

17

### Terms - [x] I have searched [open and closed feature requests](https://github.com/scribe-org/Scribe-Android/issues?q=is%3Aissue+label%3Afeature) - [x] I agree to follow Scribe-Android's [Code of Conduct](https://github.com/scribe-org/Scribe-Android/blob/main/.github/CODE_OF_CONDUCT.md) ### Description After working on [Add invalid state...