Text UI

Client-only on-screen helper text (ox_lib, lation_ui, okokTextUI, cd_drawtextui, jg-textui, lab-TextUI, zsx_uiv2).

• Client — showTextUI / hideTextUI / isTextUIOpen
• Server — not implemented

bridge.textui.showTextUI('[E] Open shop', { position = 'right-center' })
-- later
bridge.textui.hideTextUI()