feat(cable): added file-tree channel

[boazj]

📺 PR Description

A follow up on #912

Added a variant of the files channel that presents the pwd in a tree mode with a separate preview for directories from files
tree is used to render the tree
bat and eza can easily be replaced with cat and ls
script is needed just to maintain eza's color scheme

Checklist

• [ x] my commits and PR title follow the conventional commits format
• if this is a new feature, I have added tests to consolidate the feature and prevent regressions
• if this is a bug fix, I have added a test that reproduces the bug (if applicable)
• I have added a reasonable amount of documentation to the code where appropriate