Escape should discard Output panel (but not Shader editor when discarding a tooltip)

[BeayemX]

Godot version:

b17e71b

Issue description:

The output area will not be closed when Escape is pressed.
This used to work in previous versions.

Steps to reproduce:

1. Open the output area
2. Press Escape
3. Output area will not be close

[akien-mga]

Indeed, this was reverted because it brings bad UX issues with the shader editor: 32ee3bf.

[BeayemX]

So should this issue be closed or kept open until this is implemented again in another way?

[akien-mga]

We can keep this issue as a reminder to implement this feature again in a better way.

[mitchcurtis]

Coming from Qt Creator, I constantly find myself pressing escape to close the output pane after running the application. There is the Always Close Output On Stop setting, but I want to keep an eye on the output after each run in case there are any warnings or errors, so being able to use escape is a really nice in between.

To me, there is already not much space on the screen for the editor, and so the space that the output pane (really just that whole bottom pane) takes up is unfortunate:

[Calinou]

Would it be an acceptable solution to make the Escape key close the bottom panel, but only when the Output panel is selected? This would sidestep the issues with the shader editor (and possibly others).