Implement libheif v1.19.3 instead of heic2any to prevent browser crashes with some iOS 18 heic image files

public/scripts/heif-convert.js

@@ -0,0 +1,36 @@
+function HeifConvert(libheif) {
+    this.libheif = libheif;
+    this.decoder = new libheif.HeifDecoder();
+}
+
+
+HeifConvert.prototype.convert = async function (buffer) {
+    const decodeResult = this.decoder.decode(buffer);
+    const image = decodeResult[0];
+
+    let w = image.get_width();
+    let h = image.get_height();
+    const canvas = document.createElement("canvas");
+    canvas.width = w;
+    canvas.height = h;
+
+    const ctx = canvas.getContext("2d");
+    const imageData = ctx.createImageData(w, h);
+
+    await copyData(imageData, image);
+
+    ctx.putImageData(imageData, 0, 0);
+    image.free();
+    return canvas;
+};
+
+function copyData(dataContainer, image) {
+    return new Promise((resolve, reject) => {
+        image.display(
+            dataContainer,
+            function () {
+                resolve()
+            }
+        );
+    })
+}