make layer iter reversible

src/core/sense.rs

@@ -141,14 +141,8 @@ impl<Ctx: UiCtx + 'static> SensorModule<Ctx> {
         let mut layers = std::mem::take(&mut ctx.ui().layers);
         let mut module = std::mem::take(ctx.ui().modules.get_mut::<Self>());
 
-        // TODO: temp, need to actually make reverse
-        let mut layer_idxs = Vec::new();
-        for (i, _) in layers.iter_mut() {
-            layer_idxs.push(i);
-        }
-
-        for l in &layer_idxs {
-            let Some(list) = module.active.get_mut(l) else {
+        for (i, _) in layers.iter_mut().rev() {
+            let Some(list) = module.active.get_mut(&i) else {
                 continue;
             };
             let mut ran = false;