Rework notifications manager to no longer be a singleton, but a component of controller.
The dependency on it for neochat room and connection is also removed.
Have controller link to neochatconnection for errorOccured rather than call directly to remove dependency on controller.
For all the same reasons as network/neochat!1926
Move showMessage to RoomManager and merge warning in. A new Message type enum is created aligned with the Kirgami.MessageType used by Kirigami.Banner to avoid needing to translate from 2 enums.
showMessage is also sent as a signal from NeoChatRoom (and via the room from ActionsModel), this removes the need for them to have a dependency on Controller (and RoomManager). While not necessarily the cause of Windows crashes the spaghetti dependencies of RoomManager and Controller throughout the code base has made debugging that harder so this aims to simplify that as well.
Make sure that the new rules for counting notifications for muted, mention and low priority rooms is applied consistently to the room list, space drawer and the task manager notification badge
implements #644
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.
If the last active connection is not reachable (server down, keychain problems,
token revoked, etc.), NeoChat currently fails to load at all, with the only fix
being to delete a line from the config file. This is surprisingly hard to fix with
a nice UX as long as we stick to the principle of loading the user's last active
connection automatically.
This patch thus drops that principle; instead, the user is always asked to choose
the connection to continue with.
