docs: fix all mdn urls by specifying en-US

Author: SethFalco

docs/02-usage/index.mdx

@@ -7,7 +7,7 @@ We officially support four interfaces for SVGO:
 - Command-line application - Get help with `svgo --help`, or read a [tl;dr](https://github.com/tldr-pages/tldr/blob/main/pages/common/svgo.md)!
 - [Node.js library](./01-node.mdx) - For general use in Node.js.
 - [Browser bundle](./02-browser.mdx) - For using SVGO on client-side in the browser.
-- [Webpack loader](https://www.npmjs.com/package/svgo-loader) - Optimizes SVG imports with SVGO and returns a [Data URL](https://developer.mozilla.org/docs/web/http/basics_of_http/data_urls).
+- [Webpack loader](https://www.npmjs.com/package/svgo-loader) - Optimizes SVG imports with SVGO and returns a [Data URL](https://developer.mozilla.org/en-US/docs/Web/URI/Reference/Schemes/data).
 
 ## Community
 

docs/04-plugins/addAttributesToSVGElement.mdx

@@ -9,7 +9,7 @@ svgo:
     attribute:
 ---
 
-Adds attributes to the outer most [`<svg>`](https://developer.mozilla.org/docs/Web/SVG/Element/svg) element in the document. This is not an optimization and will increase the size of SVG documents.
+Adds attributes to the outer most [`<svg>`](https://developer.mozilla.org/en-US/docs/Web/SVG/Element/svg) element in the document. This is not an optimization and will increase the size of SVG documents.
 
 :::danger
 

docs/04-plugins/cleanupEnableBackground.mdx

@@ -5,9 +5,9 @@ svgo:
   defaultPlugin: true
 ---
 
-Cleans up [`enable-background`](https://developer.mozilla.org/docs/Web/SVG/Attribute/enable-background), unless the document uses [`<filter>`](https://developer.mozilla.org/docs/Web/SVG/Element/filter) elements.
+Cleans up [`enable-background`](https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute/enable-background), unless the document uses [`<filter>`](https://developer.mozilla.org/en-US/docs/Web/SVG/Element/filter) elements.
 
-Only cleans up attribute values and inline-styles, but does not affect stylesheets in [`<style>`](https://developer.mozilla.org/docs/Web/SVG/Element/style) nodes.
+Only cleans up attribute values and inline-styles, but does not affect stylesheets in [`<style>`](https://developer.mozilla.org/en-US/docs/Web/SVG/Element/style) nodes.
 
 This plugin will:
 

docs/04-plugins/cleanupListOfValues.mdx

@@ -17,4 +17,4 @@ svgo:
       default: true
 ---
 
-Rounds numeric values in attributes, such as those found in [`viewBox`](https://developer.mozilla.org/docs/Web/SVG/Attribute/viewBox), [`enable-background`](https://developer.mozilla.org/docs/Web/SVG/Attribute/enable-background), and [`points`](https://developer.mozilla.org/docs/Web/SVG/Attribute/points).
+Rounds numeric values in attributes, such as those found in [`viewBox`](https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute/viewBox), [`enable-background`](https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute/enable-background), and [`points`](https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute/points).

docs/04-plugins/collapseGroups.mdx

@@ -7,7 +7,7 @@ svgo:
 
 Finds groups that effectively do nothing and flattens them, preserving the contents of the groups.
 
-Groups can be formed using the [`<g>`](https://developer.mozilla.org/docs/Web/SVG/Element/g) element. They're used for organizing the document, or applying [presentation attributes](https://developer.mozilla.org/docs/Web/SVG/Attribute/Presentation) to all children contained in a group.
+Groups can be formed using the [`<g>`](https://developer.mozilla.org/en-US/docs/Web/SVG/Element/g) element. They're used for organizing the document, or applying [presentation attributes](https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute/Presentation) to all children contained in a group.
 
 :::info
 

docs/04-plugins/convertColors.mdx

@@ -5,7 +5,7 @@ svgo:
   defaultPlugin: true
   parameters:
     currentColor:
-      description: If to convert all instances of a color to `currentColor`. This means to inherit the active foreground color, for example in HTML5 this would be the [`color`](https://developer.mozilla.org/docs/Web/CSS/color) property in CSS.
+      description: If to convert all instances of a color to `currentColor`. This means to inherit the active foreground color, for example in HTML5 this would be the [`color`](https://developer.mozilla.org/en-US/docs/Web/CSS/color) property in CSS.
       default: false
     names2hex:
       description: If to convert color names to the hex equivalent.

docs/04-plugins/convertEllipseToCircle.mdx

@@ -5,4 +5,4 @@ svgo:
   defaultPlugin: true
 ---
 
-Convert non-eccentric [`<ellipse>`](https://developer.mozilla.org/docs/Web/SVG/Element/ellipse) elements to [`<circle>`](https://developer.mozilla.org/docs/Web/SVG/Element/circle) elements.
+Convert non-eccentric [`<ellipse>`](https://developer.mozilla.org/en-US/docs/Web/SVG/Element/ellipse) elements to [`<circle>`](https://developer.mozilla.org/en-US/docs/Web/SVG/Element/circle) elements.

docs/04-plugins/convertOneStopGradients.mdx

@@ -4,8 +4,8 @@ svgo:
   pluginId: convertOneStopGradients
 ---
 
-Converts the [`<linearGradient>`](https://developer.mozilla.org/docs/Web/SVG/Element/linearGradient) and [`<radialGradient>`](https://developer.mozilla.org/docs/Web/SVG/Element/radialGradient) nodes that are effectively a solid color to the color.
+Converts the [`<linearGradient>`](https://developer.mozilla.org/en-US/docs/Web/SVG/Element/linearGradient) and [`<radialGradient>`](https://developer.mozilla.org/en-US/docs/Web/SVG/Element/radialGradient) nodes that are effectively a solid color to the color.
 
-These nodes contain [`<stop>`](https://developer.mozilla.org/docs/Web/SVG/Element/stop) elements, which represent various colors to transition between. However, if a gradient only contains a single `<stop>`, then it's effectively a solid fill.
+These nodes contain [`<stop>`](https://developer.mozilla.org/en-US/docs/Web/SVG/Element/stop) elements, which represent various colors to transition between. However, if a gradient only contains a single `<stop>`, then it's effectively a solid fill.
 
-Definitions of the gradients are removed, and the parent [`<defs>`](https://developer.mozilla.org/docs/Web/SVG/Element/defs) node is removed if it has no children after optimization. The `xlink:href` namespace is also removed if there are no remaining elements using this attribute.
+Definitions of the gradients are removed, and the parent [`<defs>`](https://developer.mozilla.org/en-US/docs/Web/SVG/Element/defs) node is removed if it has no children after optimization. The `xlink:href` namespace is also removed if there are no remaining elements using this attribute.

docs/04-plugins/convertPathData.mdx

@@ -56,7 +56,7 @@ Optimize path commands found in `<path>`, `<glyph>`, and `<missing-glyph>` eleme
 
 :::info
 
-You can get more context on path commands on [MDN Web Docs](https://developer.mozilla.org/docs/Web/SVG/Attribute/d#path_commands).
+You can get more context on path commands on [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute/d#path_commands).
 
 :::
 

docs/04-plugins/convertShapeToPath.mdx

@@ -12,4 +12,4 @@ svgo:
       default: null
 ---
 
-Convert basic shapes to [`<path>`](https://developer.mozilla.org/docs/Web/SVG/Element/path) elements.
+Convert basic shapes to [`<path>`](https://developer.mozilla.org/en-US/docs/Web/SVG/Element/path) elements.