[feat] add a zmq based logger, change log window

- Add a new handler for a zmq/thread-safe log send between components.
- Update the log window to use this new handler.
- Remove old custom handler
  We have implemented a new handler that uses logbook, so this one is no
  longer needed.
- Adapt log silencer to new handler
- Use log file always as default

- Related: #6733

1 files changed, 1 insertions, 0 deletions

diff --git a/pkg/requirements.pip b/pkg/requirements.pip
index 5b997ac9..c6174648 100644
--- a/pkg/requirements.pip
+++ b/pkg/requirements.pip
@@ -32,3 +32,4 @@ leap.mail>=0.3.9
 oauth
 
 taskthread
+logbook