clang-tidy: use std::move where applicable (#2605)

Co-authored-by: pajlada <rasmus.karlsson@pajlada.com>

src/messages/layouts/MessageLayout.cpp

@@ -39,7 +39,7 @@ namespace {
 }  // namespace
 
 MessageLayout::MessageLayout(MessagePtr message)
-    : message_(message)
+    : message_(std::move(message))
     , container_(std::make_shared<MessageLayoutContainer>())
 {
     DebugCount::increase("message layout");

src/messages/layouts/MessageLayoutElement.cpp

@@ -88,7 +88,7 @@ FlagsEnum<MessageElementFlag> MessageLayoutElement::getFlags() const
 ImageLayoutElement::ImageLayoutElement(MessageElement &creator, ImagePtr image,
                                        const QSize &size)
     : MessageLayoutElement(creator, size)
-    , image_(image)
+    , image_(std::move(image))
 {
     this->trailingSpace = creator.hasTrailingSpace();
 }