I am trying to move a widget from the right panel to the bottom panel. I have updated the area to bottom in the constructor in view contribution like this defaultWidgetOptions : { area: 'bottom' }, but the panel still remains on the right. I have verified all instances of this in my code.
have you run the Reset Workbench Layout command between code changes? Theia tries to preserve the application layout between reloads, so it will not automatically move the widget to the bottom, if it has saved it on the right side.