Added currency picker into `LanguageView.qml`.
Added `category` and `imageSource` property to existing `CurrenciesStore.qml`. Renamed `code` to `shortName`.
Added `currenciesModel` property to `WalletStore.qml`.
Added wallet store into `LanguageView.qml` in order to link to the currencies model.
Added some tokens in the currencies store.
Made wallet and any currency related UI code that uses current currency use the new Display Currency value.
Removed no longer used wallet/settings related files.
Closes#5385
Renamed setting section "Language" to "Language & Currency".
Updated link to StatusQ - Needed new `StatusListPicker` component.
Added language model in `LanguageStore` and created first view approach for `Language` setting.
Added temporal confirmation dialog for Linux OS (since it is currently needed to restart the app to apply changes).
Removed no longer used files.
Closes#5384