chore: fix typo (#1874)

Author: XhmikosR

docs/03-plugins/cleanup-enable-background.mdx

@@ -7,7 +7,7 @@ svgo:
 
 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.
 
-Only cleans up attribute values and inline-styles, but does not effect 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/docs/Web/SVG/Element/style) nodes.
 
 This plugin will: