use grab cursor when panning image

www/style.css

@@ -232,7 +232,7 @@ input:checked + .modal {
     left: 0;
     width: 100%;
     height: 100%;
-    background-color: #00000066;
+    background-color: #000000CC;
     overflow: auto;
 }
 
@@ -252,6 +252,10 @@ input:checked + .lazy-image {
     scroll-snap-align: center;
 }
 
+input:checked + .lazy-image:active {
+    cursor: grabbing;
+}
+
 body:has(.project-image > input:checked) {
     overflow: hidden;
 }