cleanup the repo

[amtoine]

just some random cleanup of the repo, typos, commenting unwraps, refactoring, ...

crate structure

before

src/
├── app.rs
├── config
│   ├── mod.rs
│   └── parsing.rs
├── edit.rs
├── event.rs
├── handler.rs
├── lib.rs
├── main.rs
├── navigation.rs
├── nu
│   ├── cell_path.rs
│   ├── mod.rs
│   ├── strings.rs
│   └── value.rs
├── tui.rs
└── ui.rs

after

src/
├── app.rs             # defines App
├── config
│   ├── mod.rs
│   └── parsing.rs
├── edit.rs
├── handler.rs         # implements App
├── lib.rs
├── main.rs
├── navigation.rs      # implements App
├── nu
│   ├── cell_path.rs
│   ├── mod.rs
│   ├── strings.rs
│   └── value.rs
├── tui
│   ├── event.rs
│   └── mod.rs
└── ui.rs

full changelog

• aceec44 don't panic when the config is invalid
• 9e41b09 update examples
• 82c479d update the README
• d35040c implement Table::to_msg
• 7e13bc1 have nu::value::mutate_value_cell return Option
• e7ee973 add documentation to nu::value::Table
• 2d0cdc4 refactor "is table" tests
• b60cf62 add some notes to nu::value::transpose
• cebf208 add NOTEs to config::parsing
• cc69d86 make config::parsing::try_color not public
• 54beb7c return None from try_fg_bg_colors if invalid path
• 8a49d94 add NOTE to Config::from_value
• 05db92d refactor imports in config/mod.rs
• b30fde6 move repr_key from config to handler
• bd698d3 don't have executable source files
• 4fbc6b3 refactor TUI modules in src/tui/
• 060ed63 refactor imports in lib
• 70bb8bf take value: &Value in Config::from_value
• 9c74d5f documentation for app::Mode
• 9637869 derive default for app::Mode
• 9d07e54 derive Default for edit::Editor
• d46bba2 make navigation an implementation of app::App
• d191f7e refactor "following data in app"
• 75de095 remove clones and unwraps from navigation
• 7b91dfb clean handler
• 5fb10d3 isolate Makefile rules
• e67399e make handle_key_events an impl of app::App
• da3fc51 embed the configuration in the app::App
• eae82ef use nuon::from_nuon from create nuon crate from from nuon and to nuon nushell/nushell#12553