* fix: Updated the regex in background-color test
As mentioned by @Skye020 in issue #39823, I have made the semi-colon after the background-colour declaration optional, but only if it is the last declaration in the scope.
* Update curriculum/challenges/english/01-responsive-web-design/applied-visual-design/adjust-the-background-color-property-of-text.md
Co-authored-by: Shaun Hamilton <51722130+Sky020@users.noreply.github.com>
Co-authored-by: Shaun Hamilton <51722130+Sky020@users.noreply.github.com>