Burn deals damage again, plus a burn badge on spell cards and school-tinted aspect chips

Burn deals damage again. The Burn effect was gated on a strength check that shouldn't have applied to effect-only spells — so burn spells were resolving without doing damage. Decoupled now: burn fires whether the spell has strength or not.

Burn badge on spell cards. Spell cards that include a Burn effect get a top-center burn badge — the effect reads off the card at a glance instead of requiring you to parse the full spell.

Aspect-name chips tint by school color (fire / water / etc.) instead of all defaulting to gold. School is now readable at a glance across every surface aspects appear on.