feat(files): add download button to file actions in the files table

app/components/filesTable.tsx

@@ -125,6 +125,25 @@ export function FilesTable() {
       header: "Actions",
       cell: ({ row }) => (
         <div className="flex gap-2">
+          <button
+            onClick={() => handleDownload(row.original.id, row.original.filename)}
+            className="text-green-600 hover:text-green-800 transition-colors"
+            title="Download file"
+          >
+            <svg
+              className="w-5 h-5"
+              fill="none"
+              stroke="currentColor"
+              viewBox="0 0 24 24"
+            >
+              <path
+                strokeLinecap="round"
+                strokeLinejoin="round"
+                strokeWidth={2}
+                d="M12 10v6m0 0l-3-3m3 3l3-3m2 8H7a2 2 0 01-2-2V5a2 2 0 012-2h5.586a1 1 0 01.707.293l5.414 5.414a1 1 0 01.293.707V19a2 2 0 01-2 2z"
+              />
+            </svg>
+          </button>
           <button
             onClick={() => handleDeleteFile(row.original.id, row.original.filename)}
             className="text-red-600 hover:text-red-800 transition-colors"