vsx: prioritize the display of an extension's name when the view's width is limited

[vince-fugnitto]

Description

The framework should prioritize the display of the extension's name in the extension's view when the width is constrained. This will help users identify extensions more easily by hiding non-essential info, such as:

• hiding the icon
• hiding the download count
• hiding the rating

[vince-fugnitto]

cc @kaiyue0329

[vince-fugnitto]

Additional Information

• vscode css classname (when narrow): css rule to handle narrow view use-case
• vscode layout (300px): it looks like when the view is smaller than 300px, prioritization starts happening to maximize the use of the space (hide icons and other unnecessary info)