Allow longer app names in titlebar without eliding
Summary: Previously, long app names in the titlebar were elided based on an arbitrary criteria of being 1/2 the toolbar width. Now they are elided only when they no longer fit at all.
Tested in KDE Neon.
- No visual change for most app names, which are short
- Long app names are now only elided when they actually no longer fit in the space
Reviewers: apol, Discover Software Store
Reviewed By: apol, Discover Software Store
Differential Revision: https://phabricator.kde.org/D9995