fix full redraw modules not cleaning up

src/layout/ui.rs

@@ -102,7 +102,11 @@ impl Ui {
     }
 
     pub fn redraw_all(&mut self) {
-        self.data.active.clear();
+        for (_, inst) in self.data.active.drain() {
+            for m in self.data.modules.iter_mut() {
+                m.on_undraw(&inst);
+            }
+        }
         // free before bc nothing should exist
         self.free();
         let mut ctx = PainterCtx::new(&mut self.data);