difficult to get right click context menu in new flowbox
In the new flowbox view, there are no regions of space in between icons that are considered whitespace when clicked. It's therefore difficult to bring up the right click context menu for the folder when there are many files such that they fill the scroll box - all right clicks will be treated as a right click on a file/folder or the current selection. This makes it difficult to access 'new folder', 'open in terminal' and 'paste' options by mouse, and also makes it difficult to clear the current selection by mouse. If there are many subfolders, it would also make it difficult (once #37 is resolved) to drag a file into the folder and avoid having it land in a subfolder.