Update sorceress_leveling.go

[Antizerg]

1. Updated fire leveling Sorc to use firebolt instead of icebolt, allowing sorc to use firebolt starting at level 1.
2. Updated the stat selection to get 34 strength first, then pump rest into vita. This will probably get updated later once auto-equip is implemented, but as of right now it just pumps into vita so we need some strength to be able to at least wear the starter gear.