docs: remove references to File Upload Error Pipe from documentation

- Deleted the File Upload Error Pipe documentation and its references from various components and the version index.
- Updated README and component documentation to reflect the removal of the pipe, ensuring consistency across the documentation.

docs/content-services/components/file-uploading-dialog.component.md

@@ -40,4 +40,3 @@ This component should be used in combination with the
 
 -   [Upload button component](upload-button.component.md)
 -   [Upload drag area component](upload-drag-area.component.md)
--   [File upload error pipe](../pipes/file-upload-error.pipe.md)

docs/content-services/components/upload-button.component.md

@@ -86,4 +86,3 @@ export class MyComponent {
 ## See also
 
 -   [Upload Version Button component](upload-version-button.component.md)
--   [File upload error pipe](../pipes/file-upload-error.pipe.md)

docs/content-services/components/upload-drag-area.component.md

@@ -141,4 +141,3 @@ This could be either a selection of 2 or more files, or a folder with multiple e
 
 -   [File uploading dialog component](file-uploading-dialog.component.md)
 -   [Upload button component](upload-button.component.md)
--   [File upload error pipe](../pipes/file-upload-error.pipe.md)