Added Accessory UI tests

[marcusmoore]

This PR adds more tests around the UI for accessories.

[what-the-diff]

PR Summary

• Simplified View Path Syntax
  The way our systems point to certain views, or pages, in the AccessoriesController was updated to use a cleaner format called dot notation.

• Enhanced Test for Accessories Page
  Our test for the accessories page AccessoriesIndexTest has been improved. It now also checks whether the accessories page gets displayed correctly.

• Added Multiple Checkpoints for Deleting Accessories
  A new test series, 'DeleteAccessoryTest', has been created. It includes several checks when deleting an accessory, such as permission requirements, preventing deletion across different companies, inhibitions for items that are checked out, and verifying successful deletion.

• Established Preconditions for Viewing Accessories
  'ShowAccessoryTest' was added, which defines several preconditions for viewing an accessory. These include permission levels, access limits to the data of the same company, and viewing the correct accessory data.

• Revised Accessory Update Test Mechanism
  The 'UpdateAccessoryTest' is now even more robust. It includes checks for access permissions for modifications, successful rendering of the editing page, restrictions on editing data from other companies, validation for stock-check against checked-out items, and successful update operation verifications.

[snipe]

You might want to look at my pending accessories to locations + assets PR, I might have covered a few of these already.

[marcusmoore]

Do you mean #15913? It doesn't look like there is overlap but I'm ok with this waiting for that one to get merged first. I can catch it up afterwards.