File explorer open when clicking in XML file

[pvillads]

Description The file explorer opens when clicking in an XML file.

Screenshots If applicable, add screenshots to help explain your problem.

Extension Version What version of the XML Tools extension are you using? 2.5.1

VS Code Version What version of VS Code are you using? 1.51.1

Operating System Windows 10

Steps to Reproduce:

1. Open the file explorer, and then close it again; in other words; toggle the sidebar to show and then hide the explorer.
2. Open any text file. The type of file and its contents are not important. I used XML files. Notice that if you click close to the left edge of the document you will "automatically" open the file explorer again. You may need to experiment to find the sweetspot area.