Re-enable tooltips for overview items after navigation id/class cleanup.
Re-enable tooltips for overview items after navigation id/class cleanup.

wtag/bookyt,silvermind/bookyt,gaapt/bookyt,gaapt/bookyt,xuewenfei/bookyt,huerlisi/bookyt,hauledev/bookyt,wtag/bookyt,silvermind/bookyt,xuewenfei/bookyt,huerlisi/bookyt,hauledev/bookyt,silvermind/bookyt,gaapt/bookyt,silvermind/bookyt,huerlisi/bookyt,wtag/bookyt,hauledev/bookyt,hauledev/bookyt,gaapt/bookyt,xuewenfei/bookyt