remove ravenui.py by using plugin registry instead

filterwidget.py

@@ -9,9 +9,10 @@ from PySide6.QtWidgets import QWidget, QVBoxLayout, QHBoxLayout, QLineEdit, QChe
 
 from bigtext import BigText
 from logFileModel import LogFileModel
-from ravenui import RavenUI
 
 from raven.i18n import _
+from raven.pluginregistry import PluginRegistry
+
 
 class FilterTask(QRunnable):
     aborted = False
@@ -149,7 +150,7 @@ class FilterWidget(QWidget):
         self.filter_model.truncate()
         self.source_model.clear_query_highlight()
         self.filter_model.clear_query_highlight()
-        RavenUI.update_ui()
+        PluginRegistry.execute("update_ui")
 
     def filter_changed(self):
         query = self.query_field.text()