Merge pull request #22438 from fcampo/fte-time-choose-1042388

Bug 1042388 - [FTU] Changes to Region/City selectors are not displayed onscreen (r=francisco)
Conflicts:
	apps/ftu/js/app.js
Bug 1044316 - Dont assume uppercase .nodeName. r=kgrandon
Merge pull request #22313 from KevinGrandon/bug_1046158_homescreen_columns

Bug 1046158 - [Vertical Homescreens] Use three columns by default everywhere
Merge pull request #22314 from KevinGrandon/bug_1046158_homescreen_settings_cleanup

Bug 1046158 - [Settings] Revert logic for column display detection
Conflicts:
	apps/settings/elements/homescreen.html