Unified: Tab order in the Azure view panel is a bit unpredictable

[jinglouMSFT]

RG build: vscode-azureresroucegroups-0.4.1-alpha.8.vsix

The tab order (accessibility) for the Azure view panel, including the treeview, is a bit unpredictable. Since it's quite random, you will need to use the tab key and shift-tab to go forward and backward to see the inconsistent behavior. However, I don't believe this is necessary the extension problem. I seemed to observe a similar experience in the file explorer panel in VS Code as well. Not as random or unpredictable, but the issue was also there.