* Editorconfig: Add space_before_self_closing setting
This was a difference between the way dotnet-format and Rider format code. See https://www.jetbrains.com/help/rider/EditorConfig_Index.html
* Editorconfig: Keep 4 spaces indentation for Swagger JSON files
They are all formatted that way, let's keep it like that.
* Apply dotnet-format, mostly white-space related changes
* Use better default than coingecko when creating a new store
* Improve recommended exchange UX
* Add btcturk for TRY
* Fix recommendation
Co-authored-by: Dennis Reimann <mail@dennisreimann.de>