Use full screen width for drop target buttons to support higher screen densities from truncating text.

Scale oversized text down if after all computations it will still be truncated at higher densities.

Fix: 239401464
Test: manual. To follow up with screenshot test: b/241386128
Change-Id: Ie088d0631b0d13beb2d9f9d5396a56f7b971dee1
4 files changed