Fix top toolbar in desktop app

Fix the top toolbar so it is fixed across the entire width of the desktop app
Side toolbar can be collapsible, but it should not affect the top toolbar

Currently, toggling the side toolbar hides part of the top toolbar. So when I need to expand the top toolbar to edit a text in the body, the side toolbar collapses and changes how the text in the main text area fits so it's sometimes hard to find the text I need to edit again. Plus, so much scrolling is needed when I need to use options in the top and side toolbars alternately.