Web Inspector: [Timeline] Records sidebar is clipped.
https://bugs.webkit.org/show_bug.cgi?id=113177

Reviewed by Pavel Feldman.

Analysis: depending on CSS injection order sidebar rule that overwrites
"bottom" property may win.

Fix: make timeline-specific rule "important".

* inspector/front-end/timelinePanel.css:
(.timeline .sidebar): Make "bottom" value "important".


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@146849 268f45cc-cd09-0410-ab3c-d52691b4dbfc