Consistent code formatting

[IvanPizhenko]

Sure, it's well readable. I was just thinking for consistency. Let's file another issue to look into formatting across the TS code later.

Originally posted by @tomholub in #1374 (comment)

[IvanPizhenko]

@rrrooommmaaa @tomholub Do we have any code style settings for JavaScript and TypeScript in other projects? Is there some auto-formatting (format-on-save) in other projects?

[tomholub]

Yes- you can copy settings from flowcrypt-browser vscode project. It includes vscode extensions for auto formatting. Additionally, should copy config files for both tslint and eslint from flowcrypt-browser, plus there are some custom rule implementations.

[IvanPizhenko]

@tomholub I've copied some settings from flowcrypt-browser, but I'd not say I found there something really related to typescript except enabling format-on-save in VS Code. Please look at #1431.