* Simplify QR errors even more and use the correct error state for deviceAlreadySignedIn.
* Remove the pre-defined padding on TitleAndIcon and use it in the QRCodeLoginScreen too.
* Update FullscreenDialog to allow different horizontal padding in each section.
* Move BigIcon into Compound.
* Replace the old server selection image asset with the \.host icon.
* Add a new TitleAndIcon component to Compound.
* Add the ability to override TitleAndIcon's padding.
* Add a LinkNewDeviceService that exposes the SDK's grant QR code login methods.
* Add a flow coordinator for linking a new device.
Changes the presentation too.
