feat(export): add session name prefix toggle in layout dropdown

src/types/electron.d.ts

@@ -801,6 +801,7 @@ export interface ExportOptions {
   excelCompactColumns?: boolean
   txtColumns?: string[]
   sessionLayout?: 'shared' | 'per-session'
+  sessionNameWithTypePrefix?: boolean
   displayNamePreference?: 'group-nickname' | 'remark' | 'nickname'
   exportConcurrency?: number
 }