feat(nim): Add Nim module (#1189)

* Nim module and tests

* Add nim to docs

* parse_nim_version refactor, add nim desc

* Add nim symbol to Nerd Font preset

* Yellow with v prefix as default version

* Nim version fmt fix

* Update docs/config/README.md

Co-authored-by: Dario Vladović <d.vladimyr@gmail.com>

* Update src/modules/nim.rs

Co-authored-by: Dario Vladović <d.vladimyr@gmail.com>

* Nim module and tests

* Add nim to docs

* Yellow with v prefix as default version

* Update docs/config/README.md

Co-authored-by: Dario Vladović <d.vladimyr@gmail.com>

* Update src/modules/nim.rs

Co-authored-by: Dario Vladović <d.vladimyr@gmail.com>

* Add nim to docs, proper version formatting.

* Remove v from symbol, add to fmt string

* cargo fmt

Co-authored-by: Dario Vladovic <d.vladimyr@gmail.com>

docs/config/README.md

@@ -115,6 +115,7 @@ prompt_order = [
     "haskell",
     "java",
     "julia",
+    "nim",
     "nodejs",
     "ocaml",
     "php",
@@ -1016,6 +1017,33 @@ truncation_length = 4
 truncation_symbol = ""
 ```
 
+## Nim
+
+The `nim` module shows the currently installed version of Nim.
+The module will be shown if any of the following conditions are met:
+- The current directory contains a `nim.cfg` file
+- The current directory contains a file with the `.nim` extension
+- The current directory contains a file with the `.nims` extension
+- The current directory contains a file with the `.nimble` extension
+
+### Options
+
+| Variable   | Default         | Description                                            |
+| ---------- | --------------- | ------------------------------------------------------ |
+| `symbol`   | `"👑 "`         | The symbol used before displaying the version of Nim.  |
+| `style`    | `"bold yellow"` | The style for the module.                              |
+| `disabled` | `false`         | Disables the `nim` module.                             |
+
+### Example
+
+```toml
+# ~/.config/starship.toml
+
+[nim]
+style = "yellow"
+symbol = "🎣 "
+```
+
 ## Nix-shell
 
 The `nix_shell` module shows the nix-shell environment.

docs/presets/README.md

@@ -58,6 +58,9 @@ symbol = " "
 [memory_usage]
 symbol = " "
 
+[nim]
+symbol = " "
+
 [nix_shell]
 symbol = " "