Fix SVG exporting without file ending in Safari

Author: jvolker

src/App.vue

@@ -375,10 +375,9 @@ export default {
       const url = window.URL.createObjectURL(blob);
       const a = document.createElement("a");
       a.href = url;
-      a.download = truncate(
-        this.text.replace(/[^a-z0-9]/gi, "_").toLowerCase(),
-        100
-      ); // download file name
+      a.download =
+        truncate(this.text.replace(/[^a-z0-9]/gi, "_").toLowerCase(), 100) +
+        ".svg"; // download file name
       a.click();
       window.URL.revokeObjectURL(url);
     },