fix: added fixes for phantom docs, storage name resolution and subcollections

[lookieAU]

Description

Feature add-ons:

1. Added nested documents/sub-collection feature -> expanding a document with a sub-collection now allows the user to expand as many nested sub-collections that are present

2. Recursive delete -> Deleting a document now removes its sub-collections as well (added in confirmation pop-up as well)

Bugs:

1. Fixed the phantom document bug -> Documents with no data but having sub-collections got dropped from the tree/list/json as get() was being used. However, admin SDK supports list documents which allow us to list phantom docs and their sub-collections (also works the same way on Firefoo)

2. Fixed storage bug -> App hardcoded appspot.com to admin sdk based firebase storage URLs. Post-2024 these have changed to firebasestorage.app so it has been updated accordingly as well as fallback to the original suffix

Tests

1. Ran full vittest suite on all new/changed files
2. Manually tested fixes

Note

1. package.json has a minor linting commit, safe to merge
2. gitignore added bun.lock for devs using bun to commit instead of pnpm