wip: refactor(client): migrate components to composition api

packages/client/src/scripts/use-leave-guard.ts

@@ -1,4 +1,5 @@
 import { inject, onUnmounted, Ref } from 'vue';
+import { onBeforeRouteLeave } from 'vue-router';
 import { i18n } from '@/i18n';
 import * as os from '@/os';
 
@@ -16,6 +17,17 @@ export function useLeaveGuard(enabled: Ref<boolean>) {
 
 			return canceled;
 		});
+	} else {
+		onBeforeRouteLeave(async (to, from) => {
+			if (!enabled.value) return true;
+
+			const { canceled } = await os.confirm({
+				type: 'warning',
+				text: i18n.locale.leaveConfirm,
+			});
+
+			return !canceled;
+		});
 	}
 
 	/*