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

Added frontend label

@connorshea can you take a look at this one too?

LGTM

cc: @jschatz1

Reassigned to @jschatz1

@ClemMakesApps Thanks!!!

Status changed to merged

mentioned in commit 146e9059

Added ~149423 label

Picked into 8-12-stable, will go into RC6.

Removed ~149423 label

Mentioned in commit f2220391