refactor(status): remove null fields

types/index.ts

@@ -1,6 +1,6 @@
 import type { Account, AccountCredentials, Attachment, CreateStatusParams, Emoji, Instance, MastoClient, Notification, PushSubscription, Status } from 'masto'
 import type { Ref } from 'vue'
-import type { Mutable } from './utils'
+import type { MarkNonNullable, Mutable } from './utils'
 
 export interface AppInfo {
   id: string
@@ -59,9 +59,7 @@ export type TranslateFn = ReturnType<typeof useI18n>['t']
 export interface Draft {
   editingStatus?: Status
   initialText?: string
-  params: Omit<Mutable<CreateStatusParams>, 'status'> & {
-    status?: Exclude<CreateStatusParams['status'], null>
-  }
+  params: MarkNonNullable<Mutable<CreateStatusParams>, 'status' | 'language' | 'sensitive' | 'spoilerText' | 'visibility'>
   attachments: Attachment[]
 }
 export type DraftMap = Record<string, Draft>

types/utils.ts

@@ -1,3 +1,8 @@
 export type Mutable<T> = {
   -readonly[P in keyof T]: T[P]
 }
+
+export type Overwrite<T, O> = Omit<T, keyof O> & O
+export type MarkNonNullable<T, K extends keyof T> = Overwrite<T, {
+  [P in K]-?: NonNullable<T[P]>
+}>