Bug 989418 - Revert "Revert "Merge pull request #17263 from gasolin/bubble-merge225" for possibly breaking gaia-ui tests on TBPL"

This reverts commit a9aa1882f4b0e472f3686b157eb119d17ae60a91.
The original revert broke a lot of things and was not done correctly.

Conflicts:
	apps/clock/js/panels/timer/panel.html
	shared/style_unstable/input_areas.css
Merge pull request #17766 from julienw/revert-bad-revert

Revert "Revert "Merge pull request #17263 from gasolin/bubble-merge225" ...