refactor(error): move error types to centralized location

Consolidate XError, XErrors, and FormErrors types into a single file for better maintainability and consistency across the codebase.

app/composables/useFormErrors.ts

@@ -1,13 +1,5 @@
 import type { ZodError } from 'zod'
-
-export interface XError {
-  message: string
-  [key: string]: any
-}
-
-export interface FormErrors {
-  [field: string]: XError
-}
+import type { FormErrors } from '~/types/error'
 
 /**
  * Composable untuk menangani form validation errors seperti Laravel

app/composables/useXfetch.ts

@@ -1,13 +1,5 @@
 import type { Pinia } from 'pinia'
-
-export interface XError {
-  code: string
-  message: string
-  expectedVal?: string
-  givenVal?: string
-}
-
-export type XErrors = Record<string, XError>
+import type { XError, XErrors } from '~/types/error'
 
 export interface XfetchResult {
   success: boolean