feat: rename browser layout and add generics util function

internal/utils/typeutil/typeutil.go

@@ -0,0 +1,10 @@
+package typeutil
+
+// Keys returns a slice of the keys of the map. based with go 1.18 generics
+func Keys[K comparable, V any](m map[K]V) []K {
+	r := make([]K, 0, len(m))
+	for k := range m {
+		r = append(r, k)
+	}
+	return r
+}