Added simple spice meter (No server integration)

static/js/image_upload.js

@@ -26,17 +26,19 @@ uploadForm.on("submit", function(e) {
         alert("Please select a file first.");
         return;
     }
-
-    let formData = new FormData();
+    console.log(currentFile);
+    
+    let formData = new FormData(this);
     formData.append("image", currentFile);
 
     $.ajax({
         url: "/upload",
         type: "POST",
         data: formData,
+        processData: false,
+        contentType: false,
         success: function(response) {
             alert("Image uploaded successfully!");
-            imageInput.val("");
             preview.style.display = 'none';
             currentFile = null;
         },