Merged in feature/sas-mypages (pull request #1302)

Feature/sas mypages

* feat: Add SAS partner page under my pages
* fix: feature toggle SAS Partner page in my pages
* add translations for SAS account page
* use 'flex-start' instead of 'start'
* fix: flatten css
* fix: don't use <SectionContainer /> on linkedAccounts page

components/Blocks/CardsGrid.tsx

@@ -35,7 +35,8 @@ export default function CardsGrid({
       <SectionHeader
         title={cards_grid.title}
         preamble={cards_grid.preamble}
-        topTitle={firstItem}
+        headingAs={firstItem ? "h3" : "h4"}
+        headingLevel={firstItem ? "h1" : "h2"}
       />
       <Grids.Stackable columns={columns}>
         {cards_grid.cards.map((card, index) => {