[BUG] Fix considering custom control actions

[petar-qb]

Description

This PR allows actions to be triggered if a control object is added and is manually enabled as:
vm.Page.add_type("controls", vm.Button)
controls=[vm.Button(actions=[vm.Action(function=export_data())])]

Run the examples/_dev/app.py from the main and bug/fix_considering_custom_control_actions branches to see the difference.

Screenshot

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[antonymilne]

⭐

[nadijagraca]

LGTM. ⭐