fix file capitalization

src/main/resources/static/js/multitool/ImageHighlighter.js

@@ -0,0 +1,46 @@
+class ImageHiglighter {
+    imageHighlighter;
+    constructor(id) {
+        this.imageHighlighter = document.getElementById(id);
+        this.imageHighlightCallback = this.imageHighlightCallback.bind(this);
+
+        var styleElement = document.createElement('link');
+        styleElement.rel = 'stylesheet';
+        styleElement.href = 'css/imageHighlighter.css'
+
+        document.head.appendChild(styleElement);
+
+        this.imageHighlighter.onclick = () => {
+            this.imageHighlighter.childNodes.forEach((child) => {
+                child.classList.add('remove');
+                setTimeout(() => {
+                    this.imageHighlighter.removeChild(child);
+                }, 100)
+            })
+        }
+    }
+
+    imageHighlightCallback(highlightEvent) {
+        var bigImg = document.createElement('img');
+        bigImg.onclick = (imageClickEvent) => {
+            // This prevents the highlighter's onClick from closing the image when clicking
+            // on the image instead of next to it.
+            imageClickEvent.preventDefault();
+            imageClickEvent.stopPropagation();
+        };
+        bigImg.src = highlightEvent.target.src;
+        this.imageHighlighter.appendChild(bigImg);
+    };
+
+    setActions() {
+        // not needed in this case
+    }
+
+    adapt(div) {
+        const img = div.querySelector('.page-image');
+        img.addEventListener('click', this.imageHighlightCallback)
+        return div;
+    }
+}
+
+export default ImageHiglighter;