Removed default value for locale parameter

Author: shreedharbhat98

packages/docusaurus-plugin-content-blog/src/blogUtils.ts

@@ -210,11 +210,8 @@ async function parseBlogPostMarkdownFile({
   }
 }
 
-const defaultReadingTime: ReadingTimeFunction = ({
-  content,
-  options,
-  locale = 'en',
-}) => calculateReadingTime(content, {...options, locale});
+const defaultReadingTime: ReadingTimeFunction = ({content, locale, options}) =>
+  calculateReadingTime(content, {...options, locale});
 
 async function processBlogSourceFile(
   blogSourceRelative: string,

packages/docusaurus-plugin-content-blog/src/plugin-content-blog.d.ts

@@ -401,12 +401,12 @@ declare module '@docusaurus/plugin-content-blog' {
   export type ReadingTimeFunction = (params: {
     /** Markdown content. */
     content: string;
+    /** Locale for word segmentation. */
+    locale: string;
     /** Front matter. */
     frontMatter?: BlogPostFrontMatter & {[key: string]: unknown};
     /** Options for reading time calculation. */
     options?: ReadingTimeOptions;
-    /** Locale for word segmentation. */
-    locale?: string;
   }) => number;
 
   /**