fix(PinInput): default value type (#2311)

Should be string[] not string[][]

Author: xerox0213

packages/core/src/PinInput/PinInputRoot.vue

@@ -13,8 +13,8 @@ export type PinInputType = 'text' | 'number'
 export type PinInputValue<Type extends PinInputType> = [Type] extends ['number'] ? number[] : string[]
 
 // provide the mixed arrays because the `type` is dynamic in the context
-export type PinInputContextValue<Type extends PinInputType = 'text'> =
-  Type extends 'number'
+export type PinInputContextValue<Type extends PinInputType = 'text'>
+  = Type extends 'number'
     ? Type extends 'string'
       ? string[] | number[]
       : number[]
@@ -29,7 +29,7 @@ export interface PinInputRootProps<Type extends PinInputType = 'text'> extends P
   /** The controlled checked state of the pin input. Can be binded as `v-model`. */
   modelValue?: PinInputValue<Type> | null
   /** The default value of the pin inputs when it is initially rendered. Use when you do not need to control its checked state. */
-  defaultValue?: PinInputValue<Type>[]
+  defaultValue?: PinInputValue<Type>
   /** The placeholder character to use for empty pin-inputs. */
   placeholder?: string
   /** When `true`, pin inputs will be treated as password. */