Tooltips are only enabled or disabled when the GUI is built

[hor-net]

IGraphics::EnableTooltips has effect only if called when the GUI is build, if the GUI of the plugin is already open and you toggle the switch it doesn't really enable or disable the tooltips. If you close and open the GUI again the switch takes effect.

To Reproduce
Simply create a button to enable or disable tooltips and toggle it, it has no effect until GUI is closed and re opened

Expected behaviour
Tooltips should be enabled or disabled as soon as the switch is toggled so the user can hide them or show them as a kind of online help

The issue applies to every plugin format, both on windows and mac (I have not tested linux) and for every IGRAPHICS backend