Split up `VaultOps.test.ts`

[tegefaulkes]

Description

This PR splits up the VaultOps.test.ts test file into a new vaultOps directory with test files for each of the VaultOps functions. This should reduce the time to run all tests overall.

Issues Fixed

• No issues fixed.

Tasks

• [X] 1. Split up VaultOps tests into multiple test files.
• [X] 2. Clean up the fileTree tests and consolidate into the fileTree.test.ts directory.
• [X] 3. Clean up the hidden path tests.

Final checklist

• [x] Domain specific tests
• [x] Full tests
• [x] Updated inline-comment documentation
• [x] Lint fixed
• [x] Squash and rebased
• [x] Sanity check the final build