0jdxt

Results 3 issues of 0jdxt

Whilst working on my other PR I found `--tree` to be quite slow compared to `tree` and so analysed `cargo flamegraph` results resulting in reducing unnecessary allocations and system calls,...

## Description Short description of the changes: ## Checklist I have: - [x] 🤳 made sure that what I am adding is an app for end users, not a developer...

added explicit links to docs where it specifies how to define the date/time formats