(release) Prepare pobsync 1.1.0

Bump the package and runtime version to 1.1.0, add release notes for
the UI-focused control panel update, and refresh version assertions for
the CLI entrypoint.

Refs 1.1

src/pobsync_backend/tests/test_console_entrypoint.py

@@ -15,7 +15,7 @@ class ConsoleEntrypointTests(SimpleTestCase):
             exit_code = main(["--version"])
 
         self.assertEqual(exit_code, 0)
-        self.assertEqual(stdout.getvalue().strip(), "pobsync 1.0.0")
+        self.assertEqual(stdout.getvalue().strip(), "pobsync 1.1.0")
 
     def test_maps_backup_alias_to_django_command(self) -> None:
         with patch("pobsync.cli.execute_from_command_line") as execute: