chore: restore ALLOW_UPDATES flag

dzgui/const/update.py

@@ -0,0 +1,13 @@
+"""
+This file is intended to be patched by package maintainers
+repackaging DZGUI for use in different distributions.
+
+If DZGUI is going to be installed globally via a package manager
+or other means and will reside in an immutable location, or needs to be
+explicitly bound to a certain version, set the flag below to False.
+
+This will disable the ability for the application to self-manage and
+will suppress the "Updates available" button in the gutter.
+"""
+
+ALLOW_UPDATES = True