feat(ui): delete frames in CSimpleTop dtor

src/ui/simple/CSimpleTop.cpp

@@ -400,6 +400,11 @@ CSimpleTop::CSimpleTop() : CLayoutFrame() {
 CSimpleTop::~CSimpleTop() {
     // TODO
 
+    while (auto frame = this->m_frames.Head()) {
+        this->m_frames.UnlinkNode(frame);
+        delete frame;
+    }
+
     for (auto& strata : this->m_strata) {
         delete strata;
         strata = nullptr;