Capture Calculator Fixes

I've made a couple of adjustments/fixes to the various capture calculators: Previously, there was a bug which meant if you had the 'Show all' option selected in the ball field, then setting your Pokémon would populate the 'Pokémon's form' dropdown with the forms of that Pokémon instead of the forms of the Pokémon you're trying to catch, which would in turn cause problems if the Pokémon you were…