Fix collapsed annotation font light/dark difference.
Made numerous tweaks.

+Moved time closer to right hand side of annotation card (closer to triangle).
+Used same style as search x for notifications.
+Fixed time position when "show differences" is checked.
+Revised standalone page.
+Made slight improvements to streams CSS.
+Fixed: top bar on streams should stick to top of page and not float
Revised the stylings for notifications.
Fixed bugs identified by Dan.
Adjusted code style acording to Randall's suggestions.
Merge pull request #740 from RawKStar77/CSStweaks

CSS Improvements