Hide inactive source-use badges

Inactive badges (uses not present on a source image) are now hidden
rather than shown at low opacity, which was visually noisy and
confusing.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

public/style.css

@@ -1085,6 +1085,10 @@ nav {
 	box-shadow: 0 0 0 3px rgba(91, 156, 246, 0.3);
 }
 
+.source-card-create-bin {
+	width: 100%;
+}
+
 .source-card-footer {
 	display: flex;
 	align-items: center;
@@ -1120,7 +1124,7 @@ nav {
 }
 
 .source-use-badge.source-use-inactive {
-	opacity: 0.25;
+	display: none;
 }
 
 .source-use-grid {