Code Widget refactor; observable refactor

src/libs/dto/code_event.py

@@ -0,0 +1,16 @@
+# Python imports
+from dataclasses import dataclass, field
+
+# Lib imports
+
+# Application imports
+from .observable_event import ObservableEvent
+
+
+
+@dataclass
+class CodeEvent(ObservableEvent):
+    etype: str  = ""
+    view: any   = None
+    file: any   = None
+    buffer: any = None