Tweak lowecasing, export Optios type

Signed-off-by: Jussi Hallila <jussi@hallila.com>

plugins/techdocs-backend/src/search/DefaultTechDocsCollator.ts

@@ -31,7 +31,7 @@ interface MkSearchIndexDoc {
   location: string;
 }
 
-type TechDocsCollatorOptions = {
+export type TechDocsCollatorOptions = {
   discovery: PluginEndpointDiscovery;
   logger: Logger;
   locationTemplate?: string;
@@ -173,7 +173,7 @@ export class DefaultTechDocsCollator implements DocumentCollator {
     return legacyPaths
       ? entityInfo
       : Object.entries(entityInfo).reduce((acc, [key, value]) => {
-          return { ...acc, [key]: value.toLowerCase() };
+          return { ...acc, [key]: value.toLocaleLowerCase('en-US') };
         }, {} as EntityInfo);
   }
 }

plugins/techdocs-backend/src/search/index.ts

@@ -15,6 +15,8 @@
  */
 export { DefaultTechDocsCollator } from './DefaultTechDocsCollator';
 
+export type { TechDocsCollatorOptions } from './DefaultTechDocsCollator';
+
 /**
  * @deprecated Use directly from @backstage/techdocs-common
  */