fix: import vitest globals in entry name validation tests

Author: antonreshetov

src/main/storage/providers/markdown/runtime/__tests__/validation.test.ts

@@ -1,3 +1,4 @@
+import { describe, expect, it } from 'vitest'
 import { validateEntryName } from '../validation'
 
 describe('validateEntryName', () => {

src/shared/__tests__/entryNameValidation.test.ts

@@ -1,3 +1,4 @@
+import { describe, expect, it } from 'vitest'
 import {
   findInvalidEntryNameChars,
   formatEntryNameValidationChars,