Activities. downloaded activity shown while opening file via public link

[prashant-gurung899]

Describe the bug

Response message for downloading file is also given when file is opened via public link.

Steps to reproduce

1. Create a file "testfile.txt".
2. Create public link share for file "testfile.txt".
3. As an unauthenticated user, open the file via public link using password.
4. Download the file.

Expected behavior

Expected to see only one downloaded response message only when file is downloaded:
testfile.txt was downloaded via public link XIunelbcNmBOhTS

Actual behavior

Two downloaded response message shown:
- when file is opened.
- when file is downloaded.