Fix image scaling

CHANGELOG.md

@@ -1,6 +1,8 @@
 # Version 0.12.0 - 2020-04-??
 ### Features:
 - Implement custom wallpapers
+### Fixes:
+- Fix image scaling
 
 # Version 0.11.0 - 2020-04-02
 ### Features:

lib/components/image_bubble.dart

@@ -47,7 +47,7 @@ class _ImageBubbleState extends State<ImageBubble> {
                   _file.bytes,
                   width: size.toDouble(),
                   height: size.toDouble(),
-                  fit: BoxFit.fill,
+                  fit: BoxFit.cover,
                 ),
               );
             }