Merge pull request #16439 from overleaf/dp-resolved-comments-button-contrast

Add explicit background color for resolved-comments-toggle to fix contrast on safari

GitOrigin-RevId: 19876b85be29604af73c4e90c8a91f3cf8c98228

services/web/frontend/stylesheets/app/editor/review-panel.less

@@ -893,6 +893,7 @@ button when (@is-overleaf-light = true) {
 }
 
 .resolved-comments-toggle {
+  background-color: @gray-lightest;
   font-size: 14px;
   color: lighten(@rp-type-blue, 25%);
   border: solid 1px @rp-border-grey;