Fixed the activity layouts.

Signed-off-by: notrodash <n@notr.co>
Made code less prone to inducing tears. Fixed leaks, formatted code correctly using Android Studio's "Reformat Code…" menu item. Moved files into appropriate packages. Everything should still work, though I wasn't able to test the cell map (doesn't work for me).

Signed-off-by: notrodash <n@notr.co>