Update Tracker's Find Panel to use the Layout API.

Signed-off-by: John Scipione <jscipione@gmail.com>
Style fixes
Use font relative spacing units
Set the initial rect to 0 and center the window on screen
Refactor attaching FindPanel to FindWindow
Right align Add and Remove buttons
Rename add and remove to add button and remove button
Remove dead code, de-indent comment
Make the logic menu fields non-navigatable, tab order
Sentence case Recent queries, clip count from 0 to 10
Tweak the latch position
Put checkboxes under query box in more options
Set the PaneSwitch arrow rect based on the be_plain_font size
Eliminate variable, set directly
Use sentence case lowercasing the word "query"
Turn off radio mode and set label from marked for fRecentQueries
Remove the And/Or menu field when you remove a row