Make sure the fiters menu is completely visible

The previous solution (setting min-height on #bodyContent)
worked well but in production it contains a large notice
from `pagetriage-welcome` that eats up more of the height
already.

The patch sets min-height on a new div that includes
the list header, results, errors, and footer.

Bug: T205903
Change-Id: Ia10734dac20c119f8fd5cacd9b46cc6bbe0105d6
2 files changed