ui: add like icon

Signed-off-by: kernelkind <kernelkind@gmail.com>

crates/notedeck_ui/src/app_images.rs

@@ -240,3 +240,7 @@ pub fn zap_dark_image() -> Image<'static> {
 pub fn zap_light_image() -> Image<'static> {
     zap_dark_image().tint(Color32::BLACK)
 }
+
+pub fn like_image() -> Image<'static> {
+    Image::new(include_image!("../../../assets/icons/like_icon_4x.png"))
+}