Only show mfm warning the first time + fix sparkle

packages/client/src/components/MkSubNoteContent.vue

@@ -187,12 +187,16 @@ let disableMfm = $ref(hasMfm && defaultStore.state.animatedMfm);
 
 async function toggleMfm() {
 	if (disableMfm) {
+		if (!defaultStore.state.animatedMfmWarnShown) {
 			const { canceled } = await os.confirm({
 				type: "warning",
 				text: i18n.ts._mfm.warn,
 			});
 			if (canceled) return;
 			
+			defaultStore.set("animatedMfmWarnShown", true);
+		}
+
 		disableMfm = false;
 	} else {
 		disableMfm = true;

packages/client/src/components/mfm.ts

@@ -151,7 +151,7 @@ export default defineComponent({
 									break;
 								}
 								case "sparkle": {
-									if (!(defaultStore.state.animatedMfm || reducedMotion())) {
+									if (reducedMotion()) {
 										return genEl(token.children);
 									}
 									return h(MkSparkle, {}, genEl(token.children));

packages/client/src/store.ts

@@ -158,6 +158,10 @@ export const defaultStore = markRaw(
 			where: "device",
 			default: true,
 		},
+		animatedMfmWarnShown: {
+			where: "device",
+			default: false,
+		},
 		loadRawImages: {
 			where: "device",
 			default: false,