all texts to be in separate strings files

[tomholub]

currently most are, but I think there were some alerts that still had hardcoded texts

we may need to do a language translation, this will help

[Kharchevskyi]

What do you think about using SwiftGen in the project?
This tool will automatically generate swfit type safe code for strings.

https://github.com/SwiftGen/SwiftGen

* Avoid any risk of typo when using a String
* Free auto-completion
* Avoid the risk of using a non-existing asset name
* All this will be ensured by the compiler and thus avoid the risk of crashing at runtime.

Besides that it would be easier during code review to make sure all strings are localized.
@sosnovsky

[sosnovsky]

SwiftGen looks good for me - we can start with using it for strings, and later add support for assets, colors etc