Applied dark style to Quick View.
Tweaks.
add link to troubleshooting page to live preview error messages
restore string
show LESS errors in console
jslint errors
Quick Docs: Ignore vendor prefixes if needed
Immediately hide Quick View popover when mouse leaves editor area
image used for arrow affected width of popover
Merge pull request #8740 from MarcelGerber/quick-view-out-of-viewport

Immediately hide Quick View popover when mouse leaves editor area
Merge branch 'larz/dark-ui' of https://github.com/adobe/brackets into larz/dark-ui
Moved dark scrollbars in brackets_theme_default.less to brackets_scrollbars.less.
Missed dark JS Code Hint colors.
Adding background color to contributor images because certain images have transparent backgrounds.
Added dark grid background to dark quick view.
Missed code-font() dark style.
Tweaked dark status bar separators and highlight color.
Tweaks.
Fixed indentation.
Updated by ALF automation.