fix font rule

src/page/OgImageGeneratorPage.vue

@@ -564,6 +564,7 @@ export default {
         color: this.textColor,
         aspectRatio: `${this.width}/${this.height}`,
         maxHeight: `${this.ogMaxHeight}px !important`,
+        fontFamily: this.font,
         width: `${this.width}px`,
         height: `${this.height}px`,
       }