enhance(client): 迷惑になる可能性のある投稿を行う前に警告を表示

Resolve #9862

packages/frontend/src/components/MkPostForm.vue

@@ -579,6 +579,36 @@ async function post(ev?: MouseEvent) {
 		os.popup(MkRippleEffect, { x, y }, {}, 'end');
 	}
 
+	const annoying =
+		text.includes('$[x2') ||
+		text.includes('$[x3') ||
+		text.includes('$[x4') ||
+		text.includes('$[scale') ||
+		text.includes('$[position');
+	if (annoying) {
+		const { canceled, result } = await os.actions({
+			type: 'warning',
+			text: i18n.ts.thisPostMayBeAnnoying,
+			actions: [{
+				value: 'home',
+				text: i18n.ts.thisPostMayBeAnnoyingHome,
+				primary: true,
+			}, {
+				value: 'cancel',
+				text: i18n.ts.thisPostMayBeAnnoyingCancel,
+			}, {
+				value: 'ignore',
+				text: i18n.ts.thisPostMayBeAnnoyingIgnore,
+			}],
+		});
+
+		if (canceled) return;
+		if (result === 'cancel') return;
+		if (result === 'home') {
+			visibility = 'home';
+		}
+	}
+
 	let postData = {
 		text: text === '' ? undefined : text,
 		fileIds: files.length > 0 ? files.map(f => f.id) : undefined,