enhance(client): 投稿フォームをちょっといい感じに (#10442)

* .formラッパーを削除

* fix type of MkPostFormAttaches

* 🚀

* 🎨

* 🎨

* 🎨

* 🎨

* specifiedの時は連合なしをdisabledに

* ✌️

* set select default

* gap: 2px (max-width: 500px) / 4px

* wip

* ✌️

* 🎨

* fix maxTextLength

* 今後表示しない

* 🎨

* cache channel

* 🎨

* 連合なしにする

* use i18n.ts.neverShow

* ✌️

* refactor

* fix indent

* tweak

---------

Co-authored-by: syuilo <Syuilotan@yahoo.co.jp>

packages/frontend/src/os.ts

@@ -215,6 +215,7 @@ export function actions<T extends {
 	value: string;
 	text: string;
 	primary?: boolean,
+	danger?: boolean,
 }[]>(props: {
 	type: 'error' | 'info' | 'success' | 'warning' | 'waiting' | 'question';
 	title?: string | null;
@@ -229,6 +230,7 @@ export function actions<T extends {
 			actions: props.actions.map(a => ({
 				text: a.text,
 				primary: a.primary,
+				danger: a.danger,
 				callback: () => {
 					resolve({ canceled: false, result: a.value });
 				},