To make this work `AccountManager` is split off from controller taking all the code around `AccountRegister` and is added to LibNeoChat as it makes sense to have this functionality there.
Since _ls is now deprecated this is removed in favour of L1, I've also taken the oportunity to replace QStringLiteral and QLatin1String with their shortened form while we're at it.
There are also a few instances where the string literal type has been switch, the general rule being to use the one that matches the function type or value being compared to avoid conversions.
These share the same D-Bus service name (org.kde.neochat) which comes
with a fun little addition: KRunner activation! While this is not a
problem while NeoChat is running - since it's already registered - this
becomes an issue while searching for NeoChat in something like the
Kickoff. The Kickoff (and consequently, KRunner) tries to activate the
NeoChat D-Bus service which runs our unified push parts.
This introduces a "FakeRunner" which watches closely for calls to the
KRunner interface while we're in unified push mode (or directly called
from D-Bus but not running) so it quits immediately.
This adds a dedicated "set up for push notifications only" function in
Controller, which only sets up the KUnifiedPush connector for receiving
the message and then quitting right afterward. If the user tries to
open a notification, then it will quit and open the main client.
We aren't using thr Qt5 version anymore, and it's not really a point in
describing which exact Qt version we use with libQuotient in a user
facing string like this anyway.
Similar to text handler, pull out the disparate array of functions which format information from an event ready for display in the UI and put in a handler class with a test suite.
requires https://github.com/quotient-im/libQuotient/pull/686
