Add details about Reports Admin update

[n8-dev]

Description

• Adding information to the change log for 5.4 as per the request here General usability Improvements to All Reports View silverstripe-reports#196 (comment)
• ignore VScode IDE details

Issues

• General usability Improvements to All Reports View silverstripe-reports#196

Pull request checklist

• The target branch is correct
  • See branches and commit messages
• All commits are relevant to the purpose of the PR (e.g. no TODO comments, unrelated rewording/restructuring, or arbitrary changes)
  • Small amounts of additional changes are usually okay, but if it makes it hard to concentrate on the relevant changes, ask for the unrelated changes to be reverted, and submitted as a separate PR.
• The commit messages follow our commit message guidelines
• The PR follows our contribution guidelines
• The changes follow our writing style guide
• Code examples follow our coding conventions
• CI is green

[GuySartorelli]

Thanks for this!
Just a few changes, mostly to conform with the docs guidelines and a couple for readability.

[GuySartorelli]

Please also check the failed linting CI and see if there's something there that needs changing that I didn't point out.

[GuySartorelli]

LGTM, thanks for this