Move capture button left of search; always visible; disabled when server-disabled

- capture-btn moved to first child of trace-topbar (before search input)
- Button always visible: shows Start/Stop/Connect-to-server as before
- When server capture is disabled: grayed-out Start Capture with
  tooltip via existing i18n key 'Capture is disabled ...'
- No more hiding button when viewing saved session or when disabled
- Bump 1.22.4, SW cache v35->v36

simtrace2_pysniff/__init__.py

@@ -6,7 +6,7 @@ from .gsmtap import GsmtapSender, GsmtapReceiver
 from .pcap import PcapWriter
 from .dump import FileDumper, format_message
 
-__version__ = '1.22.3'
+__version__ = '1.22.4'
 __all__ = [
     'SniffSession',
     'DeviceDisconnected',