(chore) fix typing of LanguageDetail.keywords and ModeDetail.keyword (#3778) (#3779)

Author: alexeyinkin

types/index.d.ts

@@ -169,7 +169,7 @@ declare module 'highlight.js' {
         disableAutodetect?: boolean
         contains: (Mode)[]
         case_insensitive?: boolean
-        keywords?: Record<string, any> | string
+        keywords?: string | string[] | Record<string, string | string[]>
         isCompiled?: boolean,
         exports?: any,
         classNameAliases?: Record<string, string>
@@ -250,7 +250,7 @@ declare module 'highlight.js' {
         parent?: Mode
         starts?:Mode
         lexemes?: string | RegExp
-        keywords?: Record<string, any> | string
+        keywords?: string | string[] | Record<string, string | string[]>
         beginKeywords?: string
         relevance?: number
         illegal?: string | RegExp | Array<string | RegExp>
@@ -272,5 +272,3 @@ declare module 'highlight.js/lib/languages/*' {
     const defineLanguage: LanguageFn;
     export default defineLanguage;
 }
-
-