Updated export XFDF icon

Author: S0ulDrag0n

src/components/PDFViewer.tsx

@@ -168,7 +168,7 @@ const PDFViewer: React.FC<InputProps> = props => {
                                 header.push({
                                     type: "actionButton",
                                     title: "Save XFDF",
-                                    img: '<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M0 0h24v24H0z" fill="none"/><path d="M17 3H5c-1.11 0-2 .9-2 2v14c0 1.1.89 2 2 2h14c1.1 0 2-.9 2-2V7l-4-4zm-5 16c-1.66 0-3-1.34-3-3s1.34-3 3-3 3 1.34 3 3-1.34 3-3 3zm3-10H5V5h10v4z"/></svg>',
+                                    img: `<svg xmlns="http://www.w3.org/2000/svg" enable-background="new 0 0 24 24" height="24" viewBox="0 0 24 24" width="24"><g><path d="M0,0h24v24H0V0z" fill="none"/></g><g><g><path d="M19,3h-4.18C14.4,1.84,13.3,1,12,1S9.6,1.84,9.18,3H5C3.9,3,3,3.9,3,5v14c0,1.1,0.9,2,2,2h14c1.1,0,2-0.9,2-2V5 C21,3.9,20.1,3,19,3z M12,2.75c0.41,0,0.75,0.34,0.75,0.75S12.41,4.25,12,4.25s-0.75-0.34-0.75-0.75S11.59,2.75,12,2.75z M19,19H5 V5h14V19z"/><polygon points="15.08,11.03 12.96,8.91 7,14.86 7,17 9.1,17"/><path d="M16.85,9.27c0.2-0.2,0.2-0.51,0-0.71l-1.41-1.41c-0.2-0.2-0.51-0.2-0.71,0l-1.06,1.06l2.12,2.12L16.85,9.27z"/></g></g></svg>`,
                                     onClick: updateXfdfAttribute
                                 });
                             });