issue-9: moved keybindings out into a separate type

Also started working on a service which can be used to rebind keys using reflection.

internal/dynamo-browse/services/keybindings/service.go

@@ -0,0 +1,32 @@
+package keybindings
+
+import "reflect"
+
+type Service struct {
+	keyBindingValue reflect.Value
+}
+
+func NewService(keyBinding any) *Service {
+	v := reflect.ValueOf(keyBinding)
+	if v.Kind() != reflect.Pointer {
+		panic("keyBinding must be a pointer to a struct")
+	}
+
+	return &Service{
+		keyBindingValue: v.Elem(),
+	}
+}
+
+func (s *Service) Rebind(name string, key string) error {
+
+}
+
+func (s *Service) findFieldForBinding(name string) reflect.Value {
+
+}
+
+func (s *Service) findFieldForBindingInGroup(group reflect.Value, name string) reflect.Value {
+	for i := 0; i < group.NumField(); i++ {
+		group.Field(i).Type().
+	}
+}