Merge pull request #50526 from beauallison/correct-git-light-check-icon

Align GIT light colored check icon with dark

extensions/git/resources/icons/light/check.svg

-<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16"><polygon points="5.382,13 2.382,7 6.618,7 7,7.764 9.382,3 13.618,3 8.618,13" fill="#F6F6F6"/><path d="M12 4l-4 8h-2l-2-4h2l1 2 3-6h2z" fill="#424242"/></svg>
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+<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="-2 -2 16 16" enable-background="new -2 -2 16 16"><polygon fill="#424242" points="9,0 4.5,9 3,6 0,6 3,12 6,12 12,0"/></svg>
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