chore: Update docs

book/3rdpartyprompts.md

@@ -21,9 +21,9 @@ If you like [oh-my-posh](https://ohmyposh.dev/), you can use oh-my-posh with Nus
 3. Generate the .oh-my-posh.nu file. By default it will be generated to your home directory. You can use `--config` to specify a theme, other wise, oh-my-posh comes with a default theme.
 4. Initialize oh-my-posh prompt by adding in ~/.config/nushell/config.nu(or the path output by `$nu.config-path`) to source ~/.oh-my-posh.nu.
 
-```shell
+```nu
 # Generate the .oh-my-posh.nu file
-> oh-my-posh init nu --config ~/.poshthemes/M365Princess.omp.json 
+> oh-my-posh init nu --config ~/.poshthemes/M365Princess.omp.json
 
 # Initialize oh-my-posh.nu at shell startup by adding this line in your config.nu file
 > source ~/.oh-my-posh.nu
@@ -35,7 +35,7 @@ For MacOS users:
 2. Download and install a [nerd font](https://github.com/ryanoasis/nerd-fonts).
 3. Set the PROMPT_COMMAND in the file output by `$nu.config-path`, here is a code snippet:
 
-```shell
+```nu
 let posh_dir = (brew --prefix oh-my-posh | str trim)
 let posh_theme = $'($posh_dir)/share/oh-my-posh/themes/'
 # Change the theme names to: zash/space/robbyrussel/powerline/powerlevel10k_lean/

book/coloring_and_theming.md

@@ -12,7 +12,7 @@ Many parts of Nushell's interface can have their color customized. All of these
 
 Table borders are controlled by the `$env.config.table.mode` setting in `config.nu`. Here is an example:
 
-```shell
+```nu
 > $env.config = {
  table: {
  mode: rounded
@@ -268,7 +268,7 @@ This is the current list of primitives. Not all of these are configurable. The c
 
 Here's a small example of changing some of these values.
 
-```shell
+```nu
 > let config = {
  color_config: {
  separator: purple
@@ -293,7 +293,7 @@ Here's a small example of changing some of these values.
 
 Here's another small example using multiple color syntaxes with some comments.
 
-```shell
+```nu
 > let config = {
  color_config: {
  separator: "#88b719" # this sets only the foreground color like PR #486
@@ -347,7 +347,7 @@ Here's the current list of flat shapes.
 
 Here's a small example of how to apply color to these items. Anything not specified will receive the default color.
 
-```shell
+```nu
 > $env.config = {
  color_config: {
  shape_garbage: { fg: "#FFFFFF" bg: "#FF0000" attr: b}
@@ -371,13 +371,13 @@ The Nushell prompt is configurable through these environment variables and confi
 
 Example: For a simple prompt one could do this. Note that `PROMPT_COMMAND` requires a `block` whereas the others require a `string`.
 
-```shell
+```nu
 > $env.PROMPT_COMMAND = { build-string (date now | date format '%m/%d/%Y %I:%M:%S%.3f') ': ' (pwd | path basename) }
 ```
 
 If you don't like the default `PROMPT_INDICATOR` you could change it like this.
 
-```shell
+```nu
 > $env.PROMPT_INDICATOR = "> "
 ```
 
@@ -400,13 +400,13 @@ Each of the `PROMPT_*` variables has a corresponding `TRANSIENT_PROMPT_*` variab
 
 For example, if you want to make past prompts show up without a left prompt entirely and leave only the indicator, you can use:
 
-```shell
+```nu
 > $env.TRANSIENT_PROMPT_COMMAND = ""
 ```
 
 If you want to go back to the normal left prompt, you'll have to unset `TRANSIENT_PROMPT_COMMAND`:
 
-```shell
+```nu
 > hide-env TRANSIENT_PROMPT_COMMAND
 ```
 
@@ -430,7 +430,7 @@ Theming combines all the coloring above. Here's a quick example of one we put to
 
 The key to making theming work is to make sure you specify all themes and colors you're going to use in the `config.nu` file _before_ you declare the `let config = ` line.
 
-```shell
+```nu
 # let's define some colors
 
 let base00 = "#181818" # Default Background
@@ -516,7 +516,7 @@ if you want to go full-tilt on theming, you'll want to theme all the items I men
 
 Nushell's default config file contains a light theme definition, if you are working on a light background terminal, you can apply the light theme easily.
 
-```shell
+```nu
 # in $nu.config-path
 $env.config = {
  ...
@@ -527,7 +527,7 @@ $env.config = {
 
 You can just change it to light theme by replacing `$dark_theme` to `$light_theme`
 
-```shell
+```nu
 # in $nu.config-path
 $env.config = {
  ...
@@ -540,7 +540,7 @@ $env.config = {
 
 It's often desired to have the minimum amount of decorations when using a screen reader. In those cases, it's possible to disable borders and other decorations for both table and errors with the following options:
 
-```shell
+```nu
 # in $nu.config-path
 $env.config = {
  ...