fix(tui): stop re-asking action when launcher already picked Export/Import

Same missing-passthrough bug as the earlier tenant re-prompt fix, this time
for -Action: Start-IntuneManagementTui.ps1 always showed the
Export/Import/DeployCISBaseline/GenerateReports picker even when the
launcher's menu items 1/2 had already decided it. Launcher now passes
-Action through, TUI skips the prompt when supplied.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

VERSION

@@ -1 +1 @@
-4.3.0
+4.3.1