normalize default_config/env formatting (#9731)

# Description

This PR just tried to normalize the formatting. Everything should be 4
spaces now for those people that can't live with 2 spaces in the default
config files. I also remove some unneeded line breaks and changed two
places that should've been `edit` vs `send`.

# User-Facing Changes
<!-- List of all changes that impact the user experience here. This
helps us keep track of breaking changes. -->

# Tests + Formatting
<!--
Don't forget to add tests that cover your changes.

Make sure you've run and fixed any issues with these commands:

- `cargo fmt --all -- --check` to check standard code formatting (`cargo
fmt --all` applies these changes)
- `cargo clippy --workspace -- -D warnings -D clippy::unwrap_used -A
clippy::needless_collect -A clippy::result_large_err` to check that
you're using the standard code style
- `cargo test --workspace` to check that all tests pass
- `cargo run -- -c "use std testing; testing run-tests --path
crates/nu-std"` to run the tests for the standard library

> **Note**
> from `nushell` you can also use the `toolkit` as follows
> ```bash
> use toolkit.nu # or use an `env_change` hook to activate it
automatically
> toolkit check pr
> ```
-->

# After Submitting
<!-- If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.
-->

crates/nu-utils/src/sample_config/default_config.nu

@@ -53,7 +53,6 @@ let dark_theme = {
     block: white
     hints: dark_gray
     search_result: {bg: red fg: white}    
-
     shape_and: purple_bold
     shape_binary: purple_bold
     shape_block: blue_bold
@@ -138,7 +137,6 @@ let light_theme = {
     block: white
     hints: dark_gray
     search_result: {fg: white bg: red}    
-
     shape_and: purple_bold
     shape_binary: purple_bold
     shape_block: blue_bold
@@ -404,7 +402,6 @@ $env.config = {
                 ]
             }
         }
-
         {
             name: escape
             modifier: none
@@ -447,7 +444,6 @@ $env.config = {
             mode: [emacs, vi_normal, vi_insert]
             event: { send: openeditor }
         }
-
         {
             name: move_up
             modifier: none
@@ -592,7 +588,6 @@ $env.config = {
                 ]
             }
         }
-
         {
             name: delete_one_character_backward
             modifier: none
@@ -635,7 +630,6 @@ $env.config = {
             mode: [emacs, vi_insert]
             event: {edit: backspaceword}
         }
-
         {
             name: move_left
             modifier: none
@@ -643,7 +637,6 @@ $env.config = {
             mode: vi_normal
             event: {edit: moveleft}
         }
-
         {
             name: newline_or_run_command
             modifier: none
@@ -740,7 +733,7 @@ $env.config = {
             event: {
                 until: [
                     {send: historyhintwordcomplete}
-                {send: movewordright}
+                    {edit: movewordright}
                 ]
             }
         }
@@ -759,7 +752,7 @@ $env.config = {
             event: {
                 until: [
                     {send: historyhintwordcomplete}
-                {send: movewordright}
+                    {edit: movewordright}
                 ]
             }
         }