Add blur MFM syntax

src/client/components/global/misskey-flavored-markdown.vue

@@ -14,6 +14,15 @@ export default defineComponent({
 </script>
 
 <style lang="scss">
+._mfm_blur_ {
+	filter: blur(6px);
+	transition: filter 0.3s;
+
+	&:hover {
+		filter: blur(0px);
+	}
+}
+
 @keyframes mfm-spin {
 	0% { transform: rotate(0deg); }
 	100% { transform: rotate(360deg); }

src/client/components/mfm.ts

@@ -142,8 +142,9 @@ export default defineComponent({
 							break;
 						}
 						case 'blur': {
-							// TODO
-							break;
+							return h('span', {
+								class: '_mfm_blur_',
+							}, genEl(token.children));
 						}
 					}
 					if (style == null) {