Added spellcasting to the stats page, click the icon next to a spell slot to cast

app/imports/ui/properties/components/spells/spellsWithSubheaders.js

@@ -0,0 +1,17 @@
+export default function spellsWithSubheaders(spells = []){
+  let result = [];
+  let lastSpell = undefined;
+  let sortedSpells = [...spells].sort((a, b) => a.level - b.level)
+  sortedSpells.forEach(spell => {
+    if (spell.isSubheader) return;
+    if (!lastSpell || spell.level > lastSpell.level){
+      result.push({
+        isSubheader: true,
+        level: spell.level,
+      });
+    }
+    result.push(spell);
+    lastSpell = spell;
+  });
+  return result;
+}