feat: abstract base server dialog

dzgui/views/trees/tree_servers.py

@@ -291,6 +291,9 @@ class ServerTreeView(ContextMixin, TreeView):
             return
         self.start_distcalc()
 
+    def get_name(self) -> str:
+        return self.get_value_at_index(0)
+
     def get_simplified_ip(self) -> str:
         addr = self.get_value_at_index(7)
         qport = self.get_value_at_index(8)