Index failure on Windows and iPhone

[ichts]

Copilot version: 3.1.3

Describe how to reproduce
Sync index files between Windows and iPhone using Obsidian Sync

Expected behavior
Index file are identitcal on Windows and on IPhone

Additional context
a bug in src\search\dbOperations.ts -> getVaultIdentifier.. this.app.vault.getName() returns an empty string, at least in windows