Have DashboardStyled use all available screen space (#23708)

frontend/src/metabase/dashboard/components/Dashboard/Dashboard.styled.jsx

@@ -26,8 +26,8 @@ export const DashboardLoadingAndErrorWrapper = styled(
     );
   },
 )`
-  flex: 1 0 auto;
-
+  min-height: 100%;
+  height: 1px;
   // prevents header from scrolling so we can have a fixed sidebar
   ${({ isFullHeight }) =>
     isFullHeight &&
@@ -39,7 +39,7 @@ export const DashboardLoadingAndErrorWrapper = styled(
 export const DashboardStyled = styled.div`
   display: flex;
   flex-direction: column;
-  height: 100%;
+  min-height: 100%;
   overflow-x: hidden;
   width: 100%;
 `;