types(Cell): add CellSize type (#9802)

packages/vant/src/cell/Cell.tsx

@@ -23,11 +23,13 @@ import { Icon } from '../icon';
 
 const [name, bem] = createNamespace('cell');
 
+export type CellSize = 'normal' | 'large';
+
 export type CellArrowDirection = 'up' | 'down' | 'left' | 'right';
 
 export const cellSharedProps = {
   icon: String,
-  size: String as PropType<'large'>,
+  size: String as PropType<CellSize>,
   title: numericProp,
   value: numericProp,
   label: numericProp,

packages/vant/src/cell/README.md

@@ -197,7 +197,12 @@ app.use(CellGroup);
 The component exports the following type definitions:
 
 ```ts
-import type { CellProps, CellGroupProps, CellArrowDirection } from 'vant';
+import type {
+  CellSize,
+  CellProps,
+  CellGroupProps,
+  CellArrowDirection,
+} from 'vant';
 ```
 
 ## Theming

packages/vant/src/cell/README.zh-CN.md

@@ -202,7 +202,12 @@ app.use(CellGroup);
 组件导出以下类型定义：
 
 ```ts
-import type { CellProps, CellGroupProps, CellArrowDirection } from 'vant';
+import type {
+  CellSize,
+  CellProps,
+  CellGroupProps,
+  CellArrowDirection,
+} from 'vant';
 ```
 
 ## 主题定制

packages/vant/src/cell/index.ts

@@ -3,4 +3,4 @@ import _Cell from './Cell';
 
 export const Cell = withInstall(_Cell);
 export default Cell;
-export type { CellProps, CellArrowDirection } from './Cell';
+export type { CellSize, CellProps, CellArrowDirection } from './Cell';