fix(frontend_reversi): 共有ボタンの実装を改善 (#13750)

* fix(frontend_reversi): 共有ボタンの実装を改善

* Update Changelog

---------

Co-authored-by: syuilo <4439005+syuilo@users.noreply.github.com>

packages/frontend/src/pages/reversi/game.board.vue

@@ -151,6 +151,7 @@ import MkSwitch from '@/components/MkSwitch.vue';
 import { deepClone } from '@/scripts/clone.js';
 import { useInterval } from '@/scripts/use-interval.js';
 import { signinRequired } from '@/account.js';
+import { url } from '@/config.js';
 import { i18n } from '@/i18n.js';
 import { misskeyApi } from '@/scripts/misskey-api.js';
 import { userPage } from '@/filters/user.js';
@@ -442,7 +443,7 @@ function autoplay() {
 
 function share() {
 	os.post({
-		initialText: `#MisskeyReversi ${location.href}`,
+		initialText: `#MisskeyReversi\n${url}/reversi/g/${game.value.id}`,
 		instant: true,
 	});
 }