nautilus-share-bar: Ellipsize label

Long labels can force the nautilus window to become too wide.

Allow ellipsization to prevent this disruption of window sizing.

Fixes #26
1 job for wip/antoniof/ellipsize-share-bar-label in 2 minutes and 5 seconds
latest
Status Job ID Name Coverage
  Test
passed #1078948
build_stable

00:02:05