Add IconIndicator

Similar functionality to a SquareIndicator but uses an icon instead of a
solid color.

src/types/triggers/auratrigger.lua

@@ -92,7 +92,12 @@ function AuraTrigger:AddAura(aura)
         return
     end
     self.count = self.count + 1
-    self:SetData({ stacks = aura.applications, duration = aura.duration, expirationTime = aura.expirationTime })
+    self:SetData({
+        stacks = aura.applications,
+        duration = aura.duration,
+        expirationTime = aura.expirationTime,
+        icon = aura.icon,
+    })
     self:SetState(self.count >= self.requiredCount, false)
 end
 
@@ -100,7 +105,12 @@ end
 ---@param before UnitAuraInfo
 ---@param after UnitAuraInfo
 function AuraTrigger:UpdateAura(before, after)
-    self:SetData({ stacks = after.applications, duration = after.duration, expirationTime = after.expirationTime })
+    self:SetData({
+        stacks = after.applications,
+        duration = after.duration,
+        expirationTime = after.expirationTime,
+        icon = after.icon,
+    })
     if self.active then
         self.indicator:Update(self.data)
     end