[UX/UI] Scenario editor's bottom develop bar can't close the menu it opens

[HugoGenillier]

In the scenario editor (both temporal and nodal mode), the bottom part has two different "develop bars" which expands/reduce this part in the UI. The one on top of the play button can expands this part displaying the audio mixer panel beneath but when we try to undo what was done (hiding the panel) by reducing with the bar nothing happens.

Also the other develop bar, beneath the play button can expand/reduce just like the first one but this one does not have the bug and work normally.

We can notice that the two bars do the exact same thing (develop/hide the audio mixer/console). I feel like the one above the play button is not here to develop the audio mixer but rather to expand the whole play part on the scenario editor. The bar beneath the play part is in fact here to expand/reduce the audio mixer.

To fix :

• the first one should not expands the audio mixer part when the user touches to it but only expands the play part on the scenario editor above which will makes it bigger for the user. And the second one should not be modified
• or the first one still develops the audio mixer part but can also hide it afterwards and the second bar is not modifed

[HugoGenillier]

audioMixer.webm Also, when the audio mixer is showed by the develop bar, the icon doesn't change to orange even if the panel is now open. Same issue for the console panel.