fix: RepoPage table header having no BG (#3545)

Author: nsdeschenes

src/pages/RepoPage/CoverageTab/OverviewTab/subroute/FileExplorer/FileExplorer.jsx

@@ -23,7 +23,7 @@ function FileExplorer() {
 
   return (
     <div className="flex flex-col gap-4">
-      <div className="sticky top-0 z-10 flex justify-between gap-2 pt-2">
+      <div className="sticky top-0 z-10 flex justify-between gap-2 bg-ds-background pt-2">
         <div className="flex flex-1 items-center gap-4">
           <DisplayTypeButton
             dataLength={branchData?.length}