NC | NSFS | CLI | Separate Bucket and Account List Functions

[shirady]

Explain the changes

1. Separate the list function - from list_config_files to list_bucket_config_files and list_account_config_files.
2. Organize the file and add titles to the parts (buckets, accounts, etc.).
3. Move the functions filter_bucket and list_bucket_config_files under the buckets part, and move list_connections to the notifications part.
4. Remove the function filter_list_item as we use the functions filter_account and filter_bucket directly.
5. Added 2 cases in the file test_nc_nsfs_bucket_cli.test.js (after adding them I saw that we had them in the file test_nc_nsfs_cli.js but decided to keep them).
6. Fix a typo in a comment ("initialization").

Issues:

1. It is a partial fix as a part of NC | Maintenance and Short Refactoring Tasks #8264 "In manage_nsfs: split the implementation of list config file to a function for accounts and a function for buckets.", and was done as step in NC | Make list accounts/buckets and update account/bucket tolerant to errors like missing master key, permissions etc #8104 that part of the solution would be to avoid decryption when there are issues related to the master key.

Gaps:

1. Rename CLI test files in Jest - I added in issue NC | Unit tests suggestions and refactoring #8056 (was raised in this comment).

Testing Instructions:

Automatic tests

Please run:

1. sudo npx jest test_nc_nsfs_account_cli.test.js
2. sudo npx jest test_nc_nsfs_bucket_cli.test.js (here 2 cases were added)
3. sudo NC_CORETEST=true node node_modules/mocha/bin/mocha src/test/unit_tests/test_nc_nsfs_cli.js

• Doc added/updated
• Tests added

[romayalon]

A few minor comments, LGTM in general