docs: remove lingering fibers dependency recommendations (#1969)

Author: duboiss

content/en/deployments/github-pages.md

@@ -68,7 +68,7 @@ First install it:
 
 ::code-group
 ```bash [Yarn]
-yarn add -D push-dir
+yarn add --dev push-dir
 ```
 ```bash [NPM]
 npm install push-dir --save-dev

content/en/docs/3.features/6.configuration.md

@@ -77,8 +77,8 @@ To use these pre-processors, we need to install their webpack loaders:
 
 ::code-group
 ```bash [Yarn]
-yarn add -D pug pug-plain-loader
-yarn add -D sass sass-loader@10
+yarn add --dev pug pug-plain-loader
+yarn add --dev sass sass-loader@10
 ```
 ```bash [NPM]
 npm install --save-dev pug pug-plain-loader

content/en/docs/4.directory-structure/2.assets.md

@@ -62,17 +62,13 @@ In case you want to use `sass` make sure that you have installed `sass` and
 
 ::code-group
 ```bash [Yarn]
-yarn add -D sass sass-loader@10 fibers
+yarn add --dev sass sass-loader@10
 ```
 ```bash [NPM]
-npm install --save-dev sass sass-loader@10 fibers
+npm install --save-dev sass sass-loader@10
 ```
 ::
 
-::alert{type="info"}
-Synchronous compilation with `sass` (2x speed increase) [is enabled automatically](https://github.com/webpack-contrib/sass-loader) when `fibers` is installed.
-::
-
 Nuxt will automatically guess the file type by its extension and use the appropriate pre-processor loader for webpack. You will still need to install the required loader if you need to use them.
 
 ## Fonts

content/en/docs/4.directory-structure/8.modules.md

@@ -365,7 +365,7 @@ export default {
 
 ::code-group
 ```bash [Yarn]
-yarn add -D @nuxtjs/eslint-module
+yarn add --dev @nuxtjs/eslint-module
 ```
 ```bash [NPM]
 npm install --save-dev @nuxtjs/eslint-module

content/en/tutorials/3.going-dark-with-nuxtjs-color-mode.md

@@ -68,7 +68,7 @@ First of all you need to install the module as a dependency to your Nuxt project
 
 ::code-group
 ```bash [Yarn]
-yarn add -D @nuxtjs/color-mode
+yarn add --dev @nuxtjs/color-mode
 ```
 ```bash [NPM]
 npm install --save-dev @nuxtjs/color-mode

content/es/docs/3.features/6.configuration.md

@@ -77,8 +77,8 @@ To use these pre-processors, we need to install their webpack loaders:
 
 ::code-group
 ```bash [Yarn]
-yarn add -D pug pug-plain-loader
-yarn add -D sass sass-loader@10
+yarn add --dev pug pug-plain-loader
+yarn add --dev sass sass-loader@10
 ```
 ```bash [NPM]
 npm install --save-dev pug pug-plain-loader

content/es/docs/4.directory-structure/2.assets.md

@@ -62,17 +62,13 @@ In case you want to use `sass` make sure that you have installed `sass` and
 
 ::code-group
 ```bash [Yarn]
-yarn add -D sass sass-loader@10 fibers
+yarn add --dev sass sass-loader@10
 ```
 ```bash [NPM]
-npm install --save-dev sass sass-loader@10 fibers
+npm install --save-dev sass sass-loader@10
 ```
 ::
 
-::alert{type="info"}
-Synchronous compilation with `sass` (2x speed increase) [is enabled automatically](https://github.com/webpack-contrib/sass-loader) when `fibers` is installed.
-::
-
 Nuxt will automatically guess the file type by its extension and use the appropriate pre-processor loader for webpack. You will still need to install the required loader if you need to use them.
 
 ## Fonts

content/es/docs/4.directory-structure/8.modules.md

@@ -365,7 +365,7 @@ export default {
 
 ::code-group
 ```bash [Yarn]
-yarn add -D @nuxtjs/eslint-module
+yarn add --dev @nuxtjs/eslint-module
 ```
 ```bash [NPM]
 npm install --save-dev @nuxtjs/eslint-module

content/es/docs/5.configuration-glossary/5.configuration-css.md

@@ -15,17 +15,13 @@ In case you want to use `sass` make sure that you have installed `sass` and `sas
 
 ::code-group
 ```sh [Yarn]
-yarn add --dev sass sass-loader@10 fibers
+yarn add --dev sass sass-loader@10
 ```
 ```sh [NPM]
-npm install --save-dev sass sass-loader@10 fibers
+npm install --save-dev sass sass-loader@10
 ```
 ::
 
-::alert{type="info"}
-Synchronous compilation with `sass` (2x speed increase) [is enabled automatically](https://github.com/webpack-contrib/sass-loader) when `fibers` is installed.
-::
-
 - Type: `Array`
   - Items: `string`
 

content/es/tutorials/3.going-dark-with-nuxtjs-color-mode.md

@@ -68,7 +68,7 @@ First of all you need to install the module as a dependency to your Nuxt project
 
 ::code-group
 ```bash [Yarn]
-yarn add -D @nuxtjs/color-mode
+yarn add --dev @nuxtjs/color-mode
 ```
 ```bash [NPM]
 npm install --save-dev @nuxtjs/color-mode