Revert "Bug 936201 - [Status Bar] Update status bar visual design"

This reverts commit 29000470f2d7165fb16ea3b5e29ba8022690f4dd.
Merge pull request #13999 from KevinGrandon/revert_bug_936201

Revert "Bug 936201 - [Status Bar] Update status bar visual design" r=rik