Changed hints style (and small quick fixes)

Changed the style of the hints to a dotted underline and removed the "?" icon. Some of them became "More info" when the question mark wasn't attached to any text and some of them just dropped the question mark entirely (Limited Edition and Other in Task -> Advanced Options).

Fixed a forgotten inline style from a previous commit.

See habitrpg-shared #132 (https://github.com/HabitRPG/habitrpg-shared/pull/132) for correction on a string of text.