fix(client): リアクション設定で絵文字ピッカーが開かないのを修正

packages/client/src/components/emoji-picker-dialog.vue

@@ -32,12 +32,12 @@ import MkEmojiPicker from '@/components/emoji-picker.vue';
 import { defaultStore } from '@/store';
 
 withDefaults(defineProps<{
-	manualShowing?: boolean;
+	manualShowing?: boolean | null;
 	src?: HTMLElement;
 	showPinned?: boolean;
 	asReactionPicker?: boolean;
 }>(), {
-	manualShowing: false,
+	manualShowing: null,
 	showPinned: true,
 	asReactionPicker: false,
 });

packages/client/src/components/ui/modal.vue

@@ -28,7 +28,7 @@ function getFixedContainer(el: Element | null): Element | null {
 type ModalTypes = 'popup' | 'dialog' | 'dialog:top' | 'drawer';
 
 const props = withDefaults(defineProps<{
-	manualShowing?: boolean;
+	manualShowing?: boolean | null;
 	srcCenter?: boolean;
 	src?: HTMLElement;
 	preferType?: ModalTypes | 'auto';