[Cases ]Add getAttachmentRemovalObject to file type. (#156031)

## Summary

When deleting a file user action the message displayed should be "<user>
removed file".

before
<img width="1059" alt="Screenshot 2023-04-27 at 17 08 14"
src="https://user-images.githubusercontent.com/1533137/234906123-48452699-a1ee-4452-b2ed-2ec3d4422ac3.png">


after
<img width="1063" alt="Screenshot 2023-04-27 at 17 07 56"
src="https://user-images.githubusercontent.com/1533137/234906310-4cc9c752-da76-441e-b3de-3d6194e821cb.png">

x-pack/plugins/cases/public/components/files/file_type.test.tsx

@@ -27,6 +27,7 @@ describe('getFileType', () => {
  icon: 'document',
  displayName: 'File Attachment Type',
  getAttachmentViewObject: expect.any(Function),
+ getAttachmentRemovalObject: expect.any(Function),
  });
  });
 
@@ -184,4 +185,11 @@ describe('getFileType', () => {
  );
  });
  });
+
+ describe('getFileAttachmentRemovalObject', () => {
+ it('event renders the right message', async () => {
+ // @ts-ignore
+ expect(fileType.getAttachmentRemovalObject().event).toBe('removed file');
+ });
+ });
 });

x-pack/plugins/cases/public/components/files/file_type.tsx

@@ -103,4 +103,5 @@ export const getFileType = (): ExternalReferenceAttachmentType => ({
  icon: 'document',
  displayName: 'File Attachment Type',
  getAttachmentViewObject: getFileAttachmentViewObject,
+ getAttachmentRemovalObject: () => ({ event: i18n.REMOVED_FILE }),
 });

x-pack/plugins/cases/public/components/files/translations.tsx

@@ -113,3 +113,7 @@ export const DELETE = i18n.translate('xpack.cases.caseView.files.delete', {
 export const DELETE_FILE_TITLE = i18n.translate('xpack.cases.caseView.files.deleteThisFile', {
  defaultMessage: 'Delete this file?',
 });
+
+export const REMOVED_FILE = i18n.translate('xpack.cases.caseView.files.removedFile', {
+ defaultMessage: 'removed file',
+});