Added missing uiNamespace variable initialization for MicroDAGR.
Corrected uiNamespace variable initialization for TAD dialog.
Call cTab_fnc_unitInEnabledVehicleSeat with already existing variables _player and _vehicle.
Removed comments about changing to CBA_fnc_find.
Simplify structure of cTabIfOpen by removing the differentiation between dialog and display, now uses uiNameSpace variable everywhere. This leads to simplifications in cTab_fnc_OSD_update as we can use the same method to retrieve the display object independent of dialog or display.
Made F1-F4 actions for tablet nor reference cTabIfOpen as this could lead to script errors when the function was called very quickly after one another (for example by holding down F4 key for 10 seconds).
Make use of cTab_fnc_txt_tggl everywhere (not just TAD and MicroDAGR)