Enlarge Selected Target panel for aircraft photos

- Increased max-height from 280px to 480px
- Added styling for photo container with cyan border
- Photo limited to 140px height with cover fit

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

static/css/adsb_dashboard.css

@@ -346,7 +346,7 @@ body {
 /* Selected aircraft panel */
 .selected-aircraft {
     flex-shrink: 0;
-    max-height: 280px;
+    max-height: 480px;
     overflow-y: auto;
 }
 
@@ -354,6 +354,18 @@ body {
     padding: 12px;
 }
 
+#aircraftPhotoContainer {
+    margin-bottom: 12px;
+}
+
+#aircraftPhotoContainer img {
+    max-height: 140px;
+    width: 100%;
+    object-fit: cover;
+    border-radius: 6px;
+    border: 1px solid rgba(0, 212, 255, 0.3);
+}
+
 .selected-callsign {
     font-family: 'Orbitron', monospace;
     font-size: 20px;