gnome: allow displayed Ring ID to be ellipsized

This allows the main window width to be shrunk more.
The Ring ID displayed at the bottom is now ellipsized
if there is not enough room to display it.
However, if it is selected and copied, the entire Ring ID is still
copied to the buffer.

Issue: #73778
Change-Id: I543f549c029c3f050c31ac19afadaf3760d6952b
2 files changed