Let "Advanced search" button grow organically

The width was hardcoded to two column grid, and the button height was
fixed as well. Moved the button inside the columns; increased the
maximum horizontal place to three columns; and let the text wrap freely
to multiple rows, if even that is not enough.

Bug: 47041
Change-Id: Ife0e8fc372bbb2b381e903fe9c9f267039fb39a5
Merge "Let "Advanced search" button grow organically"