LibGfx+LibWeb: Replace remaining OpenType implementation with Skia

This change should move us forward toward emoji support, as we are no
longer limited by our own OpenType implementation, which was failing
to parse the TrueType Collection format used to store emoji fonts
(at least on macOS).

AK/LsanSuppressions.h

@@ -0,0 +1,22 @@
+/*
+ * Copyright (c) 2024, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <AK/Platform.h>
+
+#ifdef HAS_ADDRESS_SANITIZER
+extern "C" {
+char const* __lsan_default_suppressions();
+char const* __lsan_default_suppressions()
+{
+    // Both Skia and Chromium suppress false positive FontConfig leaks
+    // https://github.com/google/skia/blob/main/tools/LsanSuppressions.cpp#L20
+    // https://chromium.googlesource.com/chromium/src/build/+/master/sanitizers/lsan_suppressions.cc#25
+    return "leak:FcPatternObjectInsertElt";
+}
+}
+#endif