(Officially) make Modes dialog one-mode-per-row

Also increase the dialog height a bit so that 4 tiles fit (with default font size). Now that the tiles are a bit shorter, 20 extra dp suffice (72*4 + 8*3).

Fixes: 366034002
Test: manual
Flag: android.app.modes_ui
Change-Id: I6600a1db6ea43a47f1d79069aa9fbb6b0fc41a12
3 files changed