Since sockets are buffered `QIODevices` we can use `canReadLine()` to check
if we have a full line, instead of using a custom `SocketLineReader` class
(and the copy-pasted `DeviceLineReader` in the Bluetooth backend).
We can also loop through all the lines instead of queuing calls to `dataReceived`.
And we don't need transactions.
Summary: KDE Connect, now with correct naming!
Test Plan: It still builds.
Reviewers: #kde_connect, apol, nicolasfella
Reviewed By: #kde_connect, apol, nicolasfella
Subscribers: nicolasfella
Differential Revision: https://phabricator.kde.org/D11036
KDE Connect runs, and the bluetooth service gets published in the SDP
(service discovery protocol), which other devices use to determine what
services are available.
The getPairedDevices() method in the link provider class uses D-Bus to get
the list of paired devices, since Qt doesn't have a method giving that
information. As a result, that part of the code only works on Linux.
REVIEW: 122174
