Migrating from farmos.app to v1.farmos.app

[jgaehring]

@mstenta

I do think it would be worth putting a message up on the Android app’s store page to this effect, especially now that v1.0.1 is released

In light of the bug mentioned in Farm_input_file_nnnnnnnn.dat, I am going to take down the Play Store APK and amend the listing to point folks to the PWA.