Add delimiter to project stars and forks count

What does this MR do?

Adds the number_with_delimiter()to the project stars and fork counts on the projects dashboard.

Are there points in the code the reviewer needs to double check?

Shouldn't be any 😃

Why was this MR needed?

Improve readability and adhere to the UI guide

What are the relevant issue numbers?

Closes #20746 (closed)

Screenshots (if relevant)

Before:

After:

Does this MR meet the acceptance criteria?

• CHANGELOG entry added
• Tests
  • All builds are passing
• Conform by the style guides
• Branch has no merge conflicts with master (if you do - rebase it please)
• Squashed related commits together