ralf3u created an issue (geany/geany#4252)

When coding in the editor I can press the shortcut `Toggle Sidebar` to let appear the sidebar, so I can see editor&sidebar side by side. The focus is then still in the editor. I can change the size of the width of editor&sidebar by moving the vertical separating line with the mouse. When I press again the shortcut `Toggle Sidebar`, then the sidebar disappears. I like this behavior. But sometimes I would like to toggle between editor&sidebar and only sidebar.

**Remarks** - Yesterday I opened the issue 4251 at Geany. It is about the shortcut `Toggle between only editor and only sidebar`. The shortcut is different than this shortcut. - The shortcut `Toggle between editor&sidebar and only sidebar` should not take care if the message window is enabled or disabled. - If the shortcut `Toggle between editor&sidebar and only sidebar` is pressed, then the shortcut should first verify if sidebar is disabled. If sidebar is disabled, then nothing should happen. - If the shortcut `Toggle between editor&sidebar and only sidebar` is pressed, and if there is a toggle, then the focus should also toggle (if it toggles to editor&sidebar, the focus or rather the cursor should be in the editor; if it toggles to only sidebar, the focus should be in the content area of the sidebar).