Review suggestions from #42768 (#42830)

frontend/src/metabase/css/core/colors.module.css

@@ -4,7 +4,7 @@
 :root {
   --color-white: #fff;
   --color-success: #84bb4c;
-  --color-summarize: #88bf4d;
+  --mb-color-summarize: #88bf4d;
   --color-error: #ed6e6e;
   --mb-color-text-dark: #4c5773;
   --color-text-medium: #696e7b;

frontend/src/metabase/dashboard/components/RefreshWidget/RefreshOption/RefreshOption.module.css

@@ -13,7 +13,7 @@
 }
 
 .RefreshOptionItem.Enabled.Selected {
-  color: var(--color-summarize);
+  color: var(--mb-color-summarize);
 }
 
 .RefreshOptionItem .RefreshOptionIcon {

frontend/src/metabase/dashboard/components/RefreshWidget/RefreshOption/RefreshOption.tsx

 import cx from "classnames";
 
-import RefreshOptionS from "metabase/dashboard/components/RefreshWidget/RefreshOption/RefreshOption.module.css";
 import { Icon } from "metabase/ui";
 
+import RefreshOptionS from "./RefreshOption.module.css";
+
 export const RefreshOption = ({
   name,
   period,