fix(ui): update borders on scale change and correct Image width

- Added update_border() calls in set_scale() for Button, ChatBox, Image, Label, and TextField.
- Fixed Image::width() to multiply by width instead of height.
- Added early return in Widget::update_border() if border is not supported.

src/ui/button.cpp

@@ -63,6 +63,7 @@ bool Button::handle_mouse_button_event(const MouseButtonEvent& e) {
 Button& Button::set_scale(float scale) {
     m_scale = scale;
     update_text_scale();
+    update_border();
     return *this;
 }
 

src/ui/chat_box.cpp

@@ -37,7 +37,7 @@ ChatBox& ChatBox::set_scale(float scale) {
     if (m_text_field) {
         m_text_field->set_scale(scale);
     }
-
+    update_border();
     return *this;
 }
 ChatBox& ChatBox::set_text_scale(float scale) {

src/ui/image.cpp

@@ -46,6 +46,7 @@ Image& Image::set_texture(const Texture* texture, bool change_size) {
 
 Image& Image::set_scale(float scale) {
     m_scale = scale;
+    update_border();
     return *this;
 }
 float Image::scale() const { return m_scale; }
@@ -68,7 +69,7 @@ float Image::width() const {
     if (m_fill_parent || m_fill_width) {
         return Widget::width();
     }
-    return Widget::height() * m_scale;
+    return Widget::width() * m_scale;
 }
 
 const Texture* Image::texture() const { return m_texture; }

src/ui/label.cpp

@@ -15,6 +15,7 @@ Label& Label::set_color(Color color) {
 }
 Label& Label::set_scale(float scale) {
     m_scale = scale;
+    update_border();
     return *this;
 }
 

src/ui/text_field.cpp

@@ -107,7 +107,7 @@ void TextField::update_input_area() {
 TextField& TextField::set_scale(float scale) {
     m_scale = scale;
     m_cursor->set_height(std::max(1.0f, height() - DELTA_CUROUR_HEIGHT));
-
+    update_border();
     return *this;
 }
 

src/ui/widget.cpp

@@ -121,6 +121,9 @@ void Widget::set_width_internal(float width) { m_width = width; }
 void Widget::set_height_internal(float height) { m_height = height; }
 
 void Widget::update_border() {
+    if (!supports_border()) {
+        return;
+    }
     auto w = width();
     auto h = height();
     for (int i = 0; i < 4; ++i) {