Add news source logos (#143)

* Download favicons; Display first one

* Refine image loading

* Switch to static images

* Remove unused var

* Fix

* Clean up

* Fix width fallback

src/image_utils.py

@@ -0,0 +1,16 @@
+import logging
+from PIL import Image
+
+logger = logging.getLogger(__name__)
+
+def scale_to_max_dimensions(img, max_width, max_height):
+    h_to_w_ratio = img.height / img.width
+    w_to_h_ratio = img.width / img.height
+
+    if img.height > max_height:
+        img = img.resize((int(max_height * w_to_h_ratio), max_height), Image.Resampling.LANCZOS)
+    
+    if img.width > max_width:
+        img = img.resize((max_width, int(max_width * h_to_w_ratio)), Image.Resampling.LANCZOS)
+    
+    return img