Expand commit message width in repo view

What does this MR do?

Expands the commit message width in repo view to take advantage of the unused white space (under the history href)

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

Just need to make sure there aren't any side effects

Why was this MR needed?

To take advantage of the unused space on repo views

What are the relevant issue numbers?

Closes #20225 (closed)

Screenshots

Before:

After:

Does this MR meet the acceptance criteria?

• CHANGELOG entry added
• Tests
  • 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