Fix translation loading in share link dialog (#488)

* Fix translation loading in share link dialog

* Fix translation for share link label too

Author: krassowski

packages/collaboration-extension/src/sharedlink.ts

@@ -31,7 +31,7 @@ export const sharedLink: JupyterFrontEndPlugin<void> = {
     translator: ITranslator | null
   ) => {
     const { commands } = app;
-    const trans = (translator ?? nullTranslator).load('collaboration');
+    const trans = (translator ?? nullTranslator).load('jupyter_collaboration');
 
     commands.addCommand(CommandIDs.share, {
       label: trans.__('Generate a Shared Link'),

packages/collaboration/src/sharedlink.ts

@@ -109,7 +109,7 @@ interface IShareData {
 export async function showSharedLinkDialog({
   translator
 }: ISharedLinkDialogOptions): Promise<Dialog.IResult<string>> {
-  const trans = (translator ?? nullTranslator).load('collaboration');
+  const trans = (translator ?? nullTranslator).load('jupyter_collaboration');
 
   const token = PageConfig.getToken();
   const url = new URL(