Truncate long instance URLs on home page with ellipsis

### Description

On the home page, long instance URLs currently break/wrap to a new line, which disrupts the layout. Update the instance URL display so that it truncates with an ellipsis (...) when it exceeds the available width. Consider adding a title attribute (or tooltip) so users can still see the full URL on hover.

### Epic/Story

_No response_

### Have you provided an initial effort estimate for this issue?

I have provided an initial effort estimate