Update User's last_activity_on for any GET request on projects

What does this MR do?

In order to have an accurate date about the last activity of a User we need to update the last_activity_on field when the User is visiting some basic pages of GitLab like pages related to Dashboards, Projects, Issues and Merge Requests.

By default when a users signs in we redirect to the Project Dashboard, that's why we aren't doing anything special about the sign in action given all Dashboards are covered.

What are the relevant issue numbers?

Closes #54947 (closed)

Does this MR meet the acceptance criteria?

• Changelog entry added, if necessary
• Documentation created/updated via this MR
• Documentation reviewed by technical writer or follow-up review issue created
• Tests added for this feature/bug
• Tested in all supported browsers
• Conforms to the code review guidelines
• Conforms to the merge request performance guidelines
• Conforms to the style guides
• Conforms to the database guides
• Link to e2e tests MR added if this MR has Requires e2e tests label. See the Test Planning Process.
• Security reports checked/validated by reviewer