Code review comment for lp://qastaging/~fboucault/unity-2d/keyboard_navigation_experimental

I've found bugs:

- if number of results less than 6, the "See more/fewer results" option is of course hidden but
is still found by the keyboard navigation. Repro: do a search which returns <6 Applications. Hit down: where did focus go? Hit down again: there it is!

- Do search which returns large list of applications, scroll down. Now return to search box &
  do new search (again returning large list). New search results are still scrolled down.

- At Home, if you leave mouse highlighting one gridItem, using keyboard to navigate gives
  you a second "active" looking gridItem.

- At Home, press down, down, right, right, up, up, then Esc to close it. Now
  open Home again, press down, down and you appear on the third column now.

- At Search List of more than 6 rows or so, be about half-way down the applications list.
  Press up, down, left, right, and see how the list moves on the left/right motion - it
  shouldn't. This one is hard to reproduce - I get it searching for "e".

- At "Search Applications", at the search box, press right. Where is focus?

- Quickly type Meta, "w", down. See where focus appears - at "See Fewer Results" in the Files&Folders section

Suggestions/Questions?
- highlighted grid item's text has underline. Correct?

- At Home, continually pressing right on gridItems should wrap around?? Instead of stopping?
  Similarly for down & up? Fewer barriers?